✨ Math Ed 525, Unit 3✨
Answer all questions, then submit with your details.
If $\sigma=(\mathscr{P,L,I})$ and $\sigma'=(\mathscr{P',L',I'})$ are two planes then we say $\sigma$ is embedded to $\sigma'$ if
If $\sigma=(\mathscr{P,L,I})$ and $\sigma'=(\mathscr{P',L',I'})$ are two planes then we say $\sigma$ is a subplane of $\sigma'$ if
If $\sigma=(\mathscr{P,L,I})$ and $\sigma'=(\mathscr{P',L',I'})$ are two planes then we say $\sigma$ is a principal subplane of $\sigma'$ if
Note: Principal subplane
A subplane $\sigma$ can be a principal subplane of $\sigma$ if and only if the plane differs by exactly one line and all belonging points on it.
Example:
A complete four-point is a principal subplane of fano-configuration because the configurations are differ by exactly a line and all belonging points on this line.
Let $\sigma'=(\mathscr{P',L',I'})$ be a projective plane. Now we construct:
Then $\sigma=(\mathscr{P,L,I})$ is a principal sub-plane of $\sigma'$ obtained by removing $D \in \mathscr{L'}$. Now we show that $\sigma$ is an affine plane.
Thus $\sigma$ is an affine plane. This completes the proof.
Let $\sigma=(\mathscr{P,L,I})$ be an affine plane. By [A2], for any line $L \in \sigma$ and a point $p \notin L$, there is exactly one line on $p$ parallel to $L$. Let such a parallel line on $p$ meet $L$ at an ideal point, say $p_L$. Now we construct:
Then $\sigma'=(\mathscr{P',L',I'})$ is an extended plane of $\sigma=(\mathscr{P,L,I})$ so as $\sigma=(\mathscr{P,L,I})$ is a principal subplane of $\sigma'=(\mathscr{P',L',I'})$. Now we show that $\sigma'=(\mathscr{P',L',I'})$ is a projective plane.
Hence $\sigma'=(\mathscr{P',L',I'})$ is a projective plane. This completes the proof.
Let us remove a line $⟨0,0,1⟩$ and all its belonging points $[x,y,0]$ from $\pi_R$. Then all points in $\pi_R$ can be written as $[x,y,1]$ and all lines in $\pi_R$ are of the form $⟨a,b,c⟩$ with the property that $a,b$ both are not zero.
Now we define:
Which are both one-one onto.
This completes the proof.
Let $\sigma$ be a finite affine plane. The **order of $\sigma$** is the number of points on any line in $\sigma$. It is denoted by $O(\sigma)$. Since any affine plane $\sigma$ has the form
$\sigma: (n^2_{n+1}, n^2+n_n)$ for some $n \ge 2$
The order of an affine plane with this form is
$O(\sigma) = n$
Let $\sigma$ be a finite affine plane with the form $(n^2_{n+1}, n^2+n_n)$ for $n \ge 2$. By definition,
$O(\sigma) = n$
Now, we extend $\sigma$ to a projective plane $\pi$ so that $\sigma$ is a principal sub-plane of $\pi$. Then $\pi$ is a finite projective plane, in which $\pi$ has $n^2+n+1$ lines, each on $n+1$ points. Since every projective plane has duality, it has the form
$(n^2+n+1_{n+1})$ for $n \ge 2$
Hence, a projective plane with the form $(n^2+n+1_{n+1})$ for $n \ge 2$ has order $n$.
If a projective plane has order $n$, then it has the form $(n^2+n+1_{n+1})$ for $n \ge 2$ and conversely.
The order of the fano configuration is 2.
Let $F$ be a finite field with $q$ elements. Then $\pi_F$ is a finite projective plane. The points in $\pi_F$ are denoted by triples $[x_1, x_2, x_3]$ for $x_1, x_2, x_3$ not all zero, and proportionality is preserved. The first element of the triples can be chosen in $q$ different ways, and similarly for the second and third elements.
Since $[0,0,0]$ cannot be a point in $\pi_F$, there is a total of
$ \frac{q^3 - 1}{q - 1} = q^2 + q + 1 $
number of non-proportional and not all zero triples in $\pi_F$. Thus,
$O(\pi_F) = q$
This completes the proof.
Let $\pi = (\mathscr{P}, \mathscr{L}, \mathscr{I})$ be a projective plane of order $n$. If $p$ is any point of the projective plane, then each of the $n+1$ lines through $p$ contains $n$ additional distinct points. Thus, we have altogether
$(n+1)n+1$ points.
By duality, this proves that the number of lines is also the same.
This completes the proof.
In 1952, the newly formed IMU re-established the ICMI and Prof. A. Chatelete was elected as the first president of IMU. The former president of ICMI was Felix Klein and former secretary was Hanri Fehr. The first 1962, second 1966 and third 1970 elected presidents of ICMI were Lichnerowicz, Freudenthal and Lighthill. Not until 1969, did ICMI start the new International ICME congresses after the New Math movement took place in different countries. The first three congress mainly dealt with new curricula and ongoing projects.
The first International Congress on Mathematical Education (ICME) was held in Lyons, France, from August 24-30, 1969. This event was a significant landmark in the history of the International Commission on Mathematical Instruction (ICMI), which decided to establish ICMEs as a permanent institution, arranging them regularly every four years between the International Congresses of Mathematicians (ICMs).
The establishment of ICME was driven by the opinion of Hans Freudenthal, who became President of ICMI at the beginning of 1967. He believed that the role of ICMI at the ICMs was not sufficiently significant. Freudenthal argued for the need of:
A congress devoted solely to mathematics education, where invited talks could be given and opportunities for personal contributions would be presented.
The Executive Committee of ICMI accepted this idea, and the first ICME was organized with financial support from the French Government and UNESCO. Although this initiative was taken without informing the IMU Executive Committee initially, the IMU later decided to continue its policy of paying special attention to educational questions through ICMI, aiming to ensure that creative mathematicians and educators remained connected.
The first ICME was launched in 1969 in Lyon, France, at the initiative of ICMI President Hans Freudenthal (1905-1990) and has been held since then in leap years.
| ICMI | Year | Location | Message | Countries |
|---|---|---|---|---|
| ICME-1 | 1969 | Lyon (France) | 42 | |
| ICME-2 | 1972 | Exeter (UK) | 73 | |
| ICME-3 | 1976 | Karlsruhe (Germany) | 76 | |
| ICME-4 | 1980 | Berkeley (USA) | Mathematics for All / Everyday life mathematics | 73 |
| ICME-5 | 1984 | Adelaide (Australia) | 68 | |
| ICME-6 | 1988 | Budapest (Hungary) | 40 | |
| ICME-7 | 1992 | Quebec (Canada) | 57 | |
| ICME-8 | 1996 | Sevilla (Spain) | 83 | |
| ICME-9 | 2000 | Tokyo (Japan) | 79 | |
| ICME-10 | 2004 | Copenhagen (Denmark) | 83 | |
| ICME-11 | 2008 | Monterrey (Mexico) | ||
| ICME-12 | 2012 | Seoul (Korea) | ||
| ICME-13 | 2016 | Hamburg (Germany) | ||
| ICME-14 | 2021 | Shanghai (China) | ||
| ICME-15 | 2024 | Sydney (Australia) |
Mathematics education is a distinct discipline rather than mathematics. It has its own history. In the history of mathematics education, one might find different movements and trends in different civilizations and countries. The explosion of science and technology has changed social and human life day by day. The world slowly becomes a narrow place due to the dominant role of information technology.
To face the new problems related to new technologies, mathematics education in different countries needs to have a broad vision, and it was necessary to create unity in mathematical activities to fulfill their global needs in the field of mathematics education. So, different commissions, conferences, and seminars were established and organized in various places at various times for the concerned subject matter.
The International Conference on Science Technology and Mathematics Education for Human Development, held from 20-23 February 2001, in Panaji (Goa), India, was hosted by the Homi Bhabha Centre for Science Education (HBCSE), a national Centre of the Tata Institute of Fundamental Research, Mumbai, devoted to science and mathematics education. Financial support was provided by UNESCO; Commonwealth Association for Science and Technology Educators (CASTME); Commonwealth Secretariat (COM-SEC); the Departments of Science and Technology and Biotechnology of the Government of India and Indira Gandhi National Open University.
The conference was targeted mainly at educational planners and administrators; curriculum developers; teacher educators; teachers, researchers and specialists in science, technology and mathematics education (STME) as well as representatives of concerned voluntary organizations. Its aims and objectives were as follows:
This conference was sponsored by the International Commission of Mathematical Instruction and India Science Academy and was supported by IMU, Unesco, University Grants Commission (UGC) and National Council of Educational Research and Training. It was held from December 15 to 20 in 1975 at Allahabad and hosted by Mehta Research Institute of Mathematics and Mathematical Physics.
The main themes of the conference were to develop Integrated curriculum Integration within mathematics, Integration with application, Integration with other subjects, and Integration with everyday daily life situations. Other topics discussed in the conferences were as follows.
The conference was organized by the University of Arkansas, USA on 7, 8 and 9 August in 1969. This conference made a difference in the mathematics congress in different countries like the school mathematics programmed in Africa, teaching mathematics in Latin America, teaching mathematics in the Soviet Union and Communist China. The conference was attended by about 100 delegates from various parts of the world.
The traditions of developmental theorists (Bruner, Dienes, and Piaget) are taken from the traditions of Behaviorists (Skinner, Gagne, Carroll, and Bloom). In 1976, Prof. Efraim Fischbein of the University of Tel Aviv formed an international study group of psychologists and educators for research work. The International Group for the Psychology of Mathematics Education was formed with the following missions:
Since 1976 PME conferences have been held annually. Usually, 200 to 500 educators and psychologists attend the annual conferences which provide an annual forum for the world's leading mathematics education researchers. The two most common methodologies used by psychologists were experimental (using inferential statistics) and developmental studies (using qualitative tools). PME became a major shift away from theory-driven research to theory generation research in which social, cultural and linguistic dimensions are emphasized.
The main themes of the conferences were to develop Mathematics for All for high-level mathematical activities. Issues and Problems of Regional Conferences are raised under the following headings:
The main problem of transition is necessarily of introducing important issues:
The transition deals with the change from child to adult behavior under different domains:
The learning of mathematics evolves differently in different countries with the following issues:
Nautical view point can be visualized by the following bullets:
Different ICMEs have different focuses and with different views regarding the issues emerged at that period. In the case of ICME VI, the most expected slogans and "Mathematics for All" and "Everyday life mathematics". These slogans can finally get the support of the public and the media, but they lead to no mathematics.
Mathematics by its nature is not that of the so-called "Everyday life". Mathematics can be for all, Mathematics can be a simple and lovely subject when the students can understand it. Since 1972 (ICME 2) different ICMEs were organized every four years.
The first ICME was held at Lyon, France, 1969. Approximately 700 mathematicians and mathematics educators from 42 countries. The main objectives of the conferences were to differentiate the mathematics education from mathematics and discuss about the changes that brought by the “New Math”.
The contemporary mathematical society faced the great trouble to develop mathematics education and its change. They discussed the following problems regarding with change in mathematics education.
The second ICME was held at Exeter University in England, 1972 and participated by about 1400 mathematicians and mathematics educators from 73 countries.
In the second ICME conference there were active discussion and comment about the following issues:
The third ICME was held at Karlsruh, Germany, 1976. Approximately 1800 participant were take part from 76 countries.
The issues and problem of ICME III were focused on the following topics:
The fourth ICME was focused on the following topics:
The fifth ICME was held at Adelaide in Australia, 1984. The conference was attended by 2000 delegates from 68 countries. It talks about "Methods as well as Modelling", Micro-computer, calculator, and culturally deprived and gifted students.
Major themes were Math for all, ethnomathematics and mathematics education in the global village. The shortage of math teacher was one problem among many. The causes for this shortage were identified as
Major goal of constructivism as a method as well as the philosophy.
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Major goal of constructivism and mathematical research. Adult numeracy, Collaborative learning, curriculum Development, Interdisciplinary Math, Math for employment, NCTM standards were more topics dismissed!
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The ninth ICME was held in Mukuhari, Japan (2000). The ICME IX was attended by 1840 participants from 79 countries.
The tenth international congress mathematics education (ICME X) was held in Copenhagen, Denmark in 2004. It focused the great majority of students in all countries concerned continue their studies in upper secondary school. The special needs of different students, integration with other subjects, "mathematics for all" and the mathematical literacy necessary for further study and everyday life are vital issues in all countries and have given rise to a multitude research and development projects.
Preparation for the Centennial of the Commission, to be celebrated in 2008, was in 2004. Ferdinando Arzarello has been appointed as the chair of the IPC and the current plans are for a symposium to be organized in Rome around May 2008 just prior to ICME XI. The aims of the symposium are to reflect on the evolution of mathematics education during the last 100 years and identify the emerging trends in the field.
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Devoted to the development of mathematics education at all levels, the International Commission on Mathematical Instruction (ICMI) is an international non-governmental and non-profit scientific organization whose purpose is to promote international cooperation in mathematics education. The scope of the Commission's work quickly expanded beyond just secondary schools to include the teaching of mathematics at all types of schools, including primary and vocational, as well as universities.
The ICMI, or its predecessor known as the International Commission on the Teaching of Mathematics, was established in 1908 during the International Congress of Mathematicians (ICM) held in Rome. The proposal for its creation was initiated by David Eugene Smith from New York. The Rome Congress accepted a resolution charging Professors F. Klein, G. Greenhill, and Henri Fehr to constitute an International Commission to study these questions and report to the next Congress. This three-person group named itself the "Central Committee," with Felix Klein as President, G. Greenhill as Vice President, and Henri Fehr as Secretary General. Thus, Felix Klein was the first president of ICMI (1908-1920).
The acronym ICMI became popular later, and the name "International Commission on Mathematical Instruction" was officially adopted by the IMU General Assembly in 1952. Following interruptions in activity as a result of the First and Second World Wars, ICMI was reconstituted in 1952 and became an official commission of the International Mathematical Union (IMU).
ICMI has considerably expanded its objectives, activities, and international reach in the years since, with increasing commitment to educational capacity building in developing countries and broadening the participation and inclusiveness in ICMI activities of mathematics educators from diverse cultural contexts.
A major responsibility of ICMI is to plan for the quadrennial International Congress on Mathematical Education (ICME). ICME is the largest international conference on mathematics education. ICMEs are the meeting point for mathematics educators, curriculum developers, mathematicians, researchers in mathematics education, teachers, teacher educators and resource producers.
ICMI was established to support better education of mathematics at all levels and to secure public appreciation of its importance. This means that the mathematicians who met in Rome in 1908 were of the opinion that the development of mathematics depends on the development of mathematics education. The work of ICMI was oriented intensively towards the emphasis of understanding of mathematics instead of the mechanical skills.
The main goal of ICMI is to develop the international co-operation in the field of mathematics instruction. The specified aims and objectives of ICMI are as follows:
The ICMI’s primary responsibilities are to plan for the ICME congress which entails selecting one among host countries and offering opportunities to appoint an International Program Committee (IPC). The financial organization of ICME has the independent responsibilities of a national organization committee. The following are the responsibilities of ICMI:
Over recent years, ICMI has been sponsoring, jointly with Unesco and other bodies, the development of a mathematical exhibition. The exhibition "why mathematics" was changed into the slogan "Experiencing Mathematics," whose aim is to improve the image of mathematics among the general public. This exhibition resulted from the work of colleagues in France and Japan, and ICMI supported it substantially.
Following a recommendation of the Ad Hoc subcommittee on “Supporting Mathematics in Developing countries” appointed in 2003, the IMU Executive Committee established in early 2004 the Developing Countries Strategy Group (DCSG) with the charge of increasing, guiding, and coordinating IMU’s activities in support of mathematics and mathematics education in the developing world. ICMI is represented in the DCSG by Vice-president Michele Artigue. The first meeting of the DCSG was held at the Abdus Salam International Centre for Theoretical Physics (ICTP) in Italy, on 16-17 October 2004. Among the actions considered by the DCSG is the creation of a web-based Clearinghouse for African Mathematics, which will be housed at ICTP. ICMI offered to contribute to this project by collecting information about activities linked to mathematics education in Africa, in particular as regards existing associations, projects, master and doctorate programs in education, and mathematics competitions.
ICMI has co-sponsored an International Seminar on Policy and Practice in Mathematics Education organized since 2001 in Utah, USA, in the context of the annual Park City Mathematics Institutes (PCMI) hosted by the Institutes for Advanced Study (Princeton, USA). This program has engaged each year mathematics educators from a diverse set of countries in a stimulating five-day discussion about common issues and concerns in the teaching and learning of mathematics, with a particular focus on teacher preparation and development. The 2004 session took place during ICME X, where participants from the first three years shared with the large mathematics education community the outcome of the first seminars and considered with this larger group how to continue the dialogue at future Institutes.
The World Bank also expressed interest in the ICMI networking capacity with the leadership in mathematics education around the world, as it is connected to scientific societies and individuals in academic institutions and is thus complementary to the links that the Bank has with governments and ministers of education.
In a similar vein, ICMI has been invited by the Director of Education at OECD (Organization for Economic Cooperation and Development) to participate in a Forum on education and social cohesion organized by OECD on the occasion of a meeting of Education Ministers held in Dublin on March 18-19, 2004. This meeting, where ICMI was represented by the Secretary General, was a first opportunity for a direct link of ICMI with the OECD Directorate for Education.
The current ICMI affiliated Study Groups are HPM (History and Pedagogy of Mathematics, 1976), PME (Psychology of Mathematics Education, 1976), IOWME (International Organization of Women and Mathematics Education, 1987), WFNMC (World Federation of National Mathematics Competitions, 1994), and ICTMA (International Study Group for Mathematical Modeling and Application, 2003). The IICTMA 13 International Conference on the Teaching of Mathematical Modeling and Applications was held in Nepal on 23-27 July 2007 at Dhulikhel, Kathmandu University. ICTMA is held biannually with the support of ICMI.
If the sets \(A = \{3, 4, 5, 7\}\) and \(B = \{2, 3, 4, 9\}\), Which of the sets \(A\) and \(B\)...
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