Selasa, 12 Maret 2013

#5 Reflection of Mr. Marsigit's Explanation on March 6th, 2013

Dianing Meijayanti
11313244024
International Mathematics Education 2011

UNDERSTANDING OF SUPPORTING ELEMENTS ETHNOMATHEMATICS

Ethnomathematics has many supporting element. Following exposures of a short answer test with Mr. Marsigit in international class mathematics education, along with the explanation that I got from several sources.
Mathematical communication is a form of potential correlational vitality, which has the properties of the appointment or determine, namely the characterization of the properties that designated based on the properties of the bookmark. Dimensions of communication is determined by the nature whether the nature of the subject or the object has such a way in or a direction parallel to the direction of the outside, dimensions of communication are also determined by the number of potential units of math involved and a variety of vitality resulting . Literally, the crystallization of the dimensions of mathematics communication gives meaning to the mathematical material communication, formal communication of mathematics, and mathematics normative communication.
Mathematics communication material, dominate by horizontal properties from the direction of its vitality. In terms of engagement, the potential number of units involved is to be minimal when compared with the other dimensions of communication. So some people can gain the awareness that mathematics communication material is the communication with the lowest dimension. Correlational nature of the parallel, to mean equality between the subject or object of communication. The implications of the equality of subject and object are that they have a very low position in the nature of the appointment.
Formal communication of mathematics is dominated by correlational properties out or inside, of the vitality of its potential. Correlation to the outside or to the inside has meaning difference between the properties of the outer and the properties inside. The correlation between the different properties that determines the nature from the subject or object communication. Implications of the differences in the properties of the subject or properties of the object provide reinforcement of differences in the nature of the appointment. The vitality of the subject of mathematics with greater potential, will to establish himself to survive as the subject, while the vitality of the subjects with a smaller potential shifts the role of the subject himself, became the object of a role for the subject. Intuition two-Oneness will help the subjects of mathematics to understand mathematical objects.
Communication normative mathematics, marked by decreased the appointment of a correlational nature appointment on the subject and the object. However, normative communication are said to have a higher dimension because the involvement of more potential units, larger and more complex. Decreased nature of the appointment correlational horizontal not due to lack of potency and vitality of communication, but simply because of the wide range and because of the involvement of units of potential and vitality, both on themselves and on the subject of self-object. Thus the normative communication can be described the properties on the subject and object as the subject that has the potential and vitality of mathematics are high, but have a low correlation horizontal. It is understandable that the normative mathematical communication, correlational properties inside and out is getting stronger. They are more powerful than the formal communication or the materials communications. The situation can be described As with a "cease fire" between the potential and vitality of mathematics in and out. The structure of such communication, it is a communication structure that are better able to accommodate the characteristics of the subject or object of mathematical communication. Communication normative mathematics, characterized by the properties of an ideal, an abstract of the potential and vitality of the subject and object of mathematics, such as good or bad math, appropriate or not appropriate other math, math should or should not, useful or not a mathematical concept, and so on.
Correlational properties out of mathematical concepts shows the state of more clearly and specifically whether in the form of out upward or outward down. Correlational potential and vitality of mathematics to the top will transform communications to the dimensions above that is spiritual communication of mathematics, whereas the correlation potential and vitality to the bottom will transform mathematical forms of communication to the dimensions under the formal mathematical communication, or communication materials mathematics. So, spiritual communication of mathematics is accommodate existing and all communications that may exist. While communications into, will give the absolute nature of the appointment for subject and object of mathematics. While communication to the outside to the top, to break down all of the properties of the subject and object of mathematics, so that in reaching a state subject and object of communication, by the properties without the properties. The state of the subject with properties without the properties is a state in which the subject and object of communication also decays into a state in which the subject and object of mathematics cannot be distinguished anymore. That is no subject and object of communication of mathematics at the level of metaphysical. Then spiritual communication can be identified uses correlational relationship potential and vitality of the subject and the object. Correlational relationships in, and then transform all the potential and vitality of mathematics to the absolute subject. Absolute subject are subject with highest dimension, which overcome all subjects and objects of communication as well as overcoming all types of communication that exists and may exist.
If we start with a pure mind is the mind that is still clean and free from any kind of burden of consciousness then we are faced with the original question about the nature of mathematics, but if we start with an impure mind then we are directly involved with the awareness that other than awareness about the reality of mathematics. From this contradiction, it is felt there is a need for a solution. On the one hand, the pure mind will generate awareness about the reality of mathematics, namely the facts that are "a priori" but on the other hand we need "eviden" derived from human experience that produces mathematical reality as reality "synthetic". So the mathematical reality in our minds, we cannot disconnect from the eviden from our experience. It is true that according to Immanueal Kant, mathematical reality is "synthetic a priori".
Two kinds of way of knowledge, it is up and down. Up is the experience that continues to grow as time passes and the more mature person. Down is the logic of human thought, which continued to fall.
The three pillars of learning, ontology, epistemology, and axiology. Ontological approach is a reflection, in order to capture the reality of mathematics as fact has been discovered. In this self-consciousness, then the people who think mathematics is the closest to the reality of mathematics, and from here, then he can begin to discover the reality of the whole of mathematics, and his relationship with mathematics. Mathematical reality can be understood by the entire contents, density, autonomy and communication potential, both in material, formal, normative and transcendent. Ontological awareness tried to reflect and interpret the mathematical reality then implicitly present it as a useful knowledge in association with others, as well as explicitly can be formulated in formal forms to obtain consistent themes. Mathematical fact implicitly, has been included along with the existence of actor’s mathematics. The next issue is how to formulate a formal mathematical reality that is implicit that? Later it was realized that the existence of the self is the last background which includes all mathematical reality into a single overall vision of the reality of mathematics. Thus the ontological approach of tried think back deepest understanding of the reality of mathematics that has been contained in reality itself and concrete experience. Examining the most common foundation of mathematics is a way of thinking of philosophy as the beginning and end of the reflection of the reality of mathematics. Ontological approach moves between two poles, the experience will be the fact that concrete mathematics and existence of mathematical reality in which each pole interpret each other. Based on the experience of the reality of mathematics, it can be aware of the nature of existence of mathematical reality: but existence of mathematical reality will give concrete experiences for themselves about the nature of mathematical reality. Therefore, an ontological approach to understanding the mathematical reality is hermeneutic circle between experience and presence without being able to say which comes first. Ontological coverage of cannot be provided in advance but will look through ontological description, it means the study of mathematics ontologically cannot begin by determining definitions or theorems about the true basic mathematical since it will thus narrowing the boundaries of thought and thus will close the way of thinking to another. Thus, the ontological description of the reality of mathematics can only be revealed while running the ontology of mathematics as a branch of philosophy of mathematics.
Epistemological questions can be submitted, or example can we define mathematics? Defining the phrase means revealing something else is more understandable. So when we try to define, we will see "infinite Regress", the endless explanations of the terms in question. Surely this is impossible to do. If we want to get knowledge about the "nature of math" then such knowledge is the simplest and most basic (sui generis). Such mathematical knowledge cannot be simplified anymore and cannot be explained using other expression. Therefore epistemological approaches need to be developed so that we can know the position of mathematics in the context of science. One way is to use the language of "analog". With this approach, we have thought that the "there is" mathematics are "analog", with "there is" other objects in the study of philosophy. If knowledge of the others we call "idea" and is in our minds, then mathematics can also be seen as "ideas" that are within our minds. If we think of knowledge as a form of "linguistic" then we can also think that mathematics is a form of "language". So we are thinking about the general philosophy is "isomorphism" with our thinking about the philosophy of mathematics and science philosophies other. In other words, the position of mathematics is "isomorphism" with others knowledge in the study of philosophy. The next question is how far the role of consideration subject, in his attempt to explain mathematical concepts, and how can we know that such considerations are true or not? Is a consideration so require "evidence" or not. If "yes" then what is actually called evidence or evidence math? From these questions, it is clear we have found the distance between the consideration and the evidence. Immanuel Kant explains that our knowledge in general and knowledge of mathematics is the meeting between the knowledge that is "super serve" and knowledge that are "sub serve". Mathematical knowledge that is sub serve, derived from evidence, while mathematical knowledge that is super serve, comes from the imagination in our minds. According to Kant, judgment is the final stage of the process of thinking; latter stages of producing knowledge. So Kant would say that mathematics is the science of reasoning itself.
Axiological approach studied the philosophical essence of the value or the value of mathematics. Do the math as the reality of value or a given value? Is the value of the mathematical reality is intrinsic, extrinsic or systemic? Is math a pragmatic or semantic? Is math scores are subjective or objective? Is mathematics is essential or temporary? Is math scores are free or dependent? Is math singular or plural? Is there an element of beauty in mathematical reality, and how the relationship between mathematical reality with the art? Is there a responsibility to the mathematical reality? The investigation of the values ​​contained in the reality of mathematics, has been doing since contemporary philosophy.
There is 3-dimensional mathematical value that is intrinsic, extrinsic, and systemic. If someone is master mathematics just for her then the knowledge of mathematics intrinsic. If he can apply mathematics in daily life, the knowledge of mathematics is extrinsic. If he can develop mathematics in the social arena of mathematics, the mathematics knowledge is systemic. We can describe the hierarchy math scores someone with a simple diagram as follows:
If S is a mathematical value that is systemic then it will load the value of mathematics that is extrinsic (E) then S contains E or can be written mathematically S
E.
Every math extrinsic value, it must be supported by its intrinsic value (I), so the value of extrinsic load intrinsic value and can be written mathematically as E
I. Finally, the relationship between the three values ​​can be described as: S E I, meaning that S contains E contains I.
Type of political dimension of education is industrial trainer (traditional), conservative trainer, humanistic trainer, progressive, and public educators. The indicator of public educators is a democratic system of government which should be consistent from head to foot. Reality in Indonesia said that Indonesia's education system is inconsistent, tend to industrial trainer.
The dimensions of students' abilities according to Piaget are the sensorimotor stage, the preoperational stage, the concrete operational stage, and the formal operational stage. Piaget concluded that human development involves a series of stages. Each stage prepares the child for the succeeding levels.
The sensorimotor Stage is the first stage Piaget uses to define cognitive development. During this period, infants are busy discovering relationships between their bodies and the environment. Researchers have discovered that infants have relatively well developed sensory abilities. The child relies on seeing, touching, sucking, feeling, and using their senses to learn things about themselves and the environment. Piaget calls this the sensorimotor stage because the early manifestations of intelligence appear from sensory perceptions and motor activities. Countless informal experiments during the sensorimotor stage led to one of the important achievements. They enable the infant to develop the concept of separate selves, that is, the infant realizes that the external world is not an extension of them. The sensorimotor stage is also marked by the child's increasing ability to coordinate separate activities. An example of the fundamental importance of this is coordination between looking and reaching, without this an action as simple as picking up an object is not possible. Infants realise that an object can be moved by a hand (concept of causality), and develop notions of displacement and events. An important discovery during the latter part of the sensorimotor stage is the concept of "object permanence". After a child has mastered the concept of object permanence, the emergence of directed groping" begins to take place.
In the preoperational stage a child will react to all similar objects as though they are identical (Lefrancois, 1995). At this time all women are 'Mummy' and all men 'Daddy'. While at this level a child's thought is transductive. This means the child will make inferences from one specific to another (Carlson & Buskist, 1997). This leads to a child looking at the moon and reasoning; 'My ball is round, that thing there is round; therefore that thing is a ball'. From the age of about 4 years until 7 most children go through the Intuitive period. This is characterized by egocentric, perception-dominated and intuitive thought which is prone to errors in classification (Lefrancois, 1995). Most preoperational thinking is self-centred, or egocentric. According to Piaget, a preoperational child has difficulty understanding life from any other perspective than his own. In this time, the child is very me, myself, and I oriented. Egocentrism is very apparent in the relationship between two preschool children. Imagine two children are playing right next to each other, one playing with a colouring book and the other with a doll. They are talking to each other in sequence, but each child is completely oblivious to what the other is saying.
The Formal Operational stage is the final stage in Piaget's theory. It begins at approximately 11 to 12 years of age, and continues throughout adulthood; although Piaget does point out that some people may never reach this stage of cognitive development. The formal operational stage is characterized by the ability to formulate hypotheses and systematically test them to arrive at an answer to a problem. The individual in the formal stage is also able to think abstractly and to understand the form or structure of a mathematical problem. Another characteristic of the individual is their ability to reason contrary to fact. That is, if they are given a statement and asked to use it as the basis of an argument they are capable of accomplishing the task. For example, they can deal with the statement "what would happen if snow were black".
During this stage, children begin to reason logically, and organize thoughts coherently. However, they can only think about actual physical objects, and cannot handle abstract reasoning. They have difficulty understanding abstract or hypothetical concepts. This stage is also characterized by a loss of egocentric thinking. During this stage, the child has the ability to master most types of conservation experiments, and begins to understand reversibility. Conservation is the realization that quantity or amount does not change when nothing has been added or taken away from an object or a collection of objects, despite changes in form or spatial arrangement. The concrete operational stage is also characterized by the child’s ability to coordinate two dimensions of an object simultaneously, arrange structures in sequence, and transpose differences between items in a series. The child is capable of concrete problem-solving. Categorical labels such as "number" or "animal" are now available to the child.
Zone of Proximal Development (ZPD) theory is presented by Vigotsky. Vygotsky (1978) sees the Zone of Proximal Development as the area where the most sensitive instruction or guidance should be given - allowing the child to develop skills they will then use on their own - developing higher mental functions. Vygotsky also views interaction with peers as an effective way of developing skills and strategies.  He suggests that teachers use cooperative learning exercises where less competent children develop with help from more skillful peers - within the zone of proximal development.
Assimilation is a part of Piaget's theory that is evident in the way children perceive the outside world. Assimilation refers to a process by which something becomes more and more similar to something else until it becomes totally absorbed and loses its own identity. In psychology, the term Assimilation is used in two contexts. First, in the context of cultural assimilation in which someone from one culture assimilates into another, so that they can no longer be tell apart from the new culture. Assimilation is also a process described by the famous psychologist Jean Piaget who identified two cognitive processes (Assimilation and Accommodation) at work in the normal learning process of children. According to Piaget, when a child becomes aware of something new that it has never seen before it has two choices for making sense out of that thing. It can interpret that thing in terms of what it already knows (Assimilation), or it can learn a new way for making sense of that thing (Accommodation). Taken together, these two processes make up adaptation, or the child's ability to adapt to his or her environment.
Equilibrium theory is presented by Piaget. This is the force, which moves development along. Piaget believed that cognitive development did not progress at a steady rate, but rather in leaps and bounds.   Equilibrium is occurs when a child's schemas can deal with most new information through assimilation. However, an unpleasant state of disequilibrium occurs when new information cannot be fitted into existing schemas (assimilation). Equilibration is the force which drives the learning process as we do not like to be frustrated and will seek to restore balance by mastering the new challenge (accommodation). Once the new information is acquired the process of assimilation with the new schema will continue until the next time we need to make an adjustment to it.
Architectural theory presented by Immanuel Kant. 2 kinds of intuition are space and time. According to Immanuel Kant, the beginning of the knowledge of mathematics is "the awareness of the meaning of mathematics". Consciousness is thus considered as a container of mathematical reality. Mathematical awareness is always bi-polar is aware of the meaning of mathematics. Awareness was on our minds "reason". So when the reality of mathematics is in consciousness, then knowledge of mathematics has been in my mind. So there is a distance between the reality of mathematics content and container is my mind. Inside that distance, there is intuition "space" and "time". So my knowledge of mathematics is in the intuition of space and time.
In modern times, appears Widget Stain who sparked mathematics as a language and science underlies all over the world. Mathematics was always related to history. Work of civilization which is a monument in mathematics in physical form is artifacts. Mathematics is written on the palm leaves on papyrus. The first king who produces letters of Java is Prabu Ajisaka. Java cases characters as many as 20. In Java, there is a market day, calculated indirectly using mathematics. The market day are Legi, Pahing, Pon, Wage, Kliwon.
Element of the concept of mathematics is a form or container and contents. The content is the reality of mathematics, and the container is human reason. Ethnomathematics methods using grounded theory to construct theory of ethnomathematics. Ethnomathematics supported by anthropology. Science from the point of anthropology is Ethnography.
In the class, there are three parts of various interactions that are whole class interaction, small group interaction, and individual interaction. Whole class interaction is an interaction between someone, for example teacher with all students in the class. Teacher explain the material in front of class which is intended to all students other example is teacher give a chance for students to share their idea in front of class. Students’ reflection is included in whole class interaction. From the whole class, teacher can divide class into small group then distribute some problems and let students to discuss and solve it. In small group discussion, there is an interaction between students with others. They can share their idea and express their opinion then discuss together to solve the problem that have been distributed by teacher. In the small group discussion, teacher offer something that is needed by students and identify difficulty one so an interaction between students in group and teacher is occurred. In individual interaction, the interaction can be a communication between teacher with a student when ask question or interaction between a student with one student. The advantages when teacher use various interactions in the learning are make learning become an interesting learning, increase students’ spirit in the class, and help students to appreciate others opinion.
 Socially, there are two kinds of mathematical knowledge that is subjective and objective. Implementation of character education in mathematics education can be achieved on the basis of an understanding of mathematical knowledge that is objective and mathematical offender is subjective in its efforts to obtain justification about the truth of mathematics through the creation, formulation, representation, publication and interaction. Explicitly implementing character education in mathematics education based on: (1) knowledge of mathematics in a variety of dimensions, including the nature, justification and its occurrence, (2) mathematical objects in many dimensions which include the nature and origin, (3) the use of formal mathematical which include effectiveness in science, technology and other sciences, and (4) mathematical practices in different dimensions more generally, including the activities of the mathematician or mathematical activity of students in elementary school.
The beginning of knowledge is awareness. According to Immanuel Kant, the beginning of the knowledge of mathematics is "the awareness of the meaning of mathematics". Consciousness is thus considered as a container of mathematical reality. Mathematical awareness is always bi-polar is aware of the meaning of mathematics. Awareness was on our minds "reason". So when the reality of mathematics is in consciousness, then knowledge of mathematics has been in my mind. 2 kinds of knowledge that cannot be defined with mathematical knowledge is primitive / base / start knowledge and Intuition knowledge.

SOURCE:
Marsigit. 2011. Pengembangan Nilai-nilai Matematika dan Pendidikan Matematika sebagai Pilar Pembangunan Karakter Bangsa. Presented at the University of Semarang.

Senin, 11 Maret 2013

#4 Reflection of Mr. Marsigit's Blog

Dianing Meijayanti
11313244024
Inter. Math. Education 2011

http://powermathematics.blogspot.com/2013/03/mathematics-and-language-2.html

I agree that a good mathematics teacher must believe with her ​​mathematics skills. Students who have problems or do not like or even feel difficulty in mathematics, this is because the teaching of adults is not caused by young people. In other words, there is a problem in student learning because the teaching of older adults are teachers. Teachers should not be imposing their students. Thus, teachers should facilitate students to learn mathematics with pleasure, so that students can claim that mathematics is beautiful.

Minggu, 10 Maret 2013

#3 Reflection of Mr. Marsigit's Blog

Dianing Meijayanti
11313244024
Inter. Math. Education 2011
  
http://powermathematics.blogspot.com/2013/03/mathematics-and-language.html

Many types of languages ​​that exist in this world. Language is not only used as a medium of communication but also as a medium of interaction between individuals. In other words, the language used to build a life. Language is very important in the process of learning mathematics. Language has its own cultural context in which according to the origin of the individual. A teacher is required to have and use good language when presenting material to students, so that students can understand the material presented and to understand any existing vocabulary in mathematics. In learning mathematics, the language of instruction should be used is the native language, such as the Indonesia using the Indonesian language. This will make the learning is more effective than using the language of instruction from other countries. In addition, the advantages while using the original language of instruction is that students will be better able to understand each vocabulary in mathematics.

Minggu, 03 Maret 2013

#3 Reflection of Mr. Marsigit’s Explanation on the 27th of February 2013


Dianing Meijayanti
11313244024
Inter. Math. Education 2011

Is ethnomathematics effective for learning abstract mathematics, such as integral and algebra? Everything that has dimension. People have a dimension, because of different levels. Food and water also has dimension. Therefore, it is in fact ethnomatemathics, is extracted from the mathematical culture. If we see the past, then there is nothing that is not related to the history. Mathematical discoveries from mezopotamia era, is one of the inspirations for mathematics which was later found to formal mathematics, pure, deductive, and abstract. By taking the frame of mind of matematka, we can make the math building. Do the math abstract to be useful? These questions can be considered later. Mathematics is for mathematics, deductive science and others. Of abstract mathematics that includes the axioms of mathematics, which was built on the basis of agreements with others.
Is that done by a mathematician (pure mathematics)? They are a researcher in mathematics. Their problem is if the connection with mathematics learning, because they are not trained to teach science to students. Elementary school students, junior high school, and senior high school has the character and nature of each. The more down the more concrete and real, then apply realistic mathematical theory in which the bottom foundation are mathematical concrete, concrete models, a formal model and the highest is the formal mathematics. From one level to another level, need tools and various methods.
People who are capable of flexible, dynamic, creative in adapting means and methods, they are the ones who still have the intuition and empathy. People who have stress, trauma, pain, frustration, then he will not be able to gain intuition in himself. In the learning process, if a student is in a fear condition and distress, then slowly he will lose his intuition. So the problem of learning came from older people, such as the child has a problem because his parents, the student has a problem because his teacher, the people have a problem largely because its leader, and so on.
To answer the question, what is an effective abstract mathematics, followed by small research is how far ethnomathematics relevance in learning mathematics with the dimension of mathematics that have been agreed under realistic mathematics. Is the weaknesses and strengths of ethnomathematics in its implementation in Indonesia as an innovative learning? This is a question that very normative or forced and difficult to implement. In reasoning and logic, the process of innovative teaching and learning is to make student-centered learning (students as actors), developed a various method, and developing teaching materials. Ethnomathematics is on learning resources. With thecurriculum of  2013, the problems that exist know is what the government demanding the implementation of the educational course or require the implementation of an innovative and creative learning.
Etnhnomathematics not like bakpia then eaten. If students are very smart and clever in English, then he can say "go to hell, ethnomathematics". The question how to introduce ethnomathematics to students, meaning the same as the question of how to introduce mathematics realistic to students. The main way is to wear the substance, by looking at the learning styles of diverse students. Is the teacher may determine the student's learning style? Student learning styles there own. If teachers determine their students' learning styles that include bad practice, as it is the vanity and arrogance of a teacher in applying himself to the others, as if someone else had seemed. Therefore, should the relationship between the young and the elderly should be improved. If students or teachers to know the theory and thought on the matter of learning, friendship following the learning process, then there will be a sensitive and gentle behavior. If the behavior of the teacher to the students tend to be arrogant and fulgar, it will produce a poor young people, such as the student brawls, conflicts, and so on. Traditional learning where students are considered empty barrel, teachers transfer knowledge to students, it is very cruel. Supposed to be learning or learning how it is processed correctly ie with creativity, and dynamic. Dynamic point is to learn a variety of ways, never the same, so it is not monotonous.
How do teachers treat students who have different desires in learning mathematics? The trick is to encourage or motivate students by implementing innovative teaching, because traditional learning would not have been able to serve the needs of diverse students. Therefore, a teacher is required to develop, which can be done by developing technology, so that the diverse learning styles of students and teachers is still able to facilitate it.
Is formal education has an influence on a person's quality? Domain of the questions is whether formal education is required or not. Sometimes people feel that formal education disadvantage, because it is not contextual and difficult to follow. Currently, most formal education is used for the benefit of the authorities, and therefore there is a liberating discourse of education, innovative learning point should liberate students from problems, such as the inability of teachers to teach. Whatever happens is ranging from as small as anything in this world, there are always two important components, namely the container and its contents. No container without content. If the child does not attend formal education, the question is how others may recognize him. So, fomal education is a very important institute.
How teaching methods appropriate for high school students? In this world there is no right, there is only relative. There is no the best way to educate. So innovative learning is appropriate where there are various methods (discussion, reflection, presentations, assignments, online), various interaction (traditional, small group, individual), and various resources. Senior high school is the transition from children to adults. It is necessary creativity of teachers, for example by taking the abstract and concrete. During high school, psychologically, students heading to the mature so confidence should be given a place and independence must also be developed.
Another question comes, what is an example of mathematical material in collaboration with language learning? Collaboration is related to the thematic, where the quality of the talk during the learning process can be improved, but the context is the same. Mathematics is a language game. How do teachers respond to curriculum of changes? Curriculum of 2013 is a curriculum that is already assured of failure. Curriculum of 2013 win in terms of power, it is a work that is not handled by experts. Changes in the curriculum there are technical, policy, or intrinsic. Look at the terms of intrinsic, if learning is done in an innovative, then whatever the curriculum would not be a problem.