
Problem 1:
This is a cryptarithm: letters have replaced some letters in an arithmetic "sum" and you need to find the digit represented by each letter. Given that
TWO X TWO = THREE
find the digits represented by each letter.














1. General Expository Material
 Cut The Knot!
From the home page: This site is for teachers, parents and students who seek engaging mathematics. Many of the topics are accompanied by Java illustrations. There are more than 900 Java applets. The applets can be licensed by teachers for inclusion in their own pages. …
 Plus
From the home page: Plus magazine opens a door to the world of maths, with all its beauty and applications, by providing articles from the top mathematicians and science writers on topics as diverse as art, medicine, cosmology and sport. You can read the latest mathematical news on the site every week, subscribe to our fortnightly email newsletter, read our online magazine published four times a year, and browse our archive containing all past issues and news items.
 Nrich
From the home page: The NRICH Project aims to enrich the mathematical experiences of all learners. To support this aim, members of the NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to embed rich mathematical tasks into everyday classroom practice. …On this website you will find thousands of our free mathematics enrichment materials (problems, articles and games) for teachers and learners from ages 5 to 19 years. All the resources are designed to develop subject knowledge, problemsolving and mathematical thinking skills.
 Math Forum
From the home page: Math Forum Is the leading online resource for improving math learning, teaching, and communication since 1992. …We are teachers, mathematicians, researchers, students, and parents using the power of the Web to learn math and improve math education. We offer a wealth of problems and puzzles; online mentoring; research; team problem solving; collaborations; and professional development. Students have fun and learn a lot. Educators share ideas and acquire new skills.
2. History of Mathematics
 St Andrews MacTutor History of Mathematics
 David Joyce’s History of Mathematics
 Euclid’s “Elements”
 The Mathematical Problems of David Hilbert
 Math Forum Internet Resource Collection
 Convergence
 Resources on Women Mathematicians
 British Society for History of Mathematics
3. Teaching of Mathematics: Pedagogical Issues
 Home page of Prof. HungHsi Wu
 National Council of Teachers of Mathematics
 E Resources in Mathematics
4. Software for “Doing” Mathematics
4.1. Dynamic Geometry Packages.
 GeoGebra
 The Geometer’s Sketchpad
 Cabri II Plus
 Cabri 3D
 C.a.R. (“Compass and Ruler”)
 Cinderella — Interactive Geometry Software
4.2. Computer Algebra Systems.
 Derive 6
 Maxima, A Computer Algebra System
 Mathematica 7
 Maple 12
 GAP
4.3. Other Mathematics Software.
 Autograph 3.2
 Graphmatica
 FractInt 20.0
 MSW Logo
 3DXplorMath

These lists will be cumulatively added to, presently. We will also be adding
links to sites featuring:
 Geometry
 Number Theory
 Algebra
 Combinatorics
Readers are invited to share their favourite math websites. Please write to
us! 







Do you have a question to ask, that is related to school level mathematics
or mathematics teaching? If so, please feel free to type it in the box
below.


I will use it to initiate a discussion among the readers, or endeavour answer
it directly.
Here are some suggestions for typing in technical matter:
 Use simple and straightforward language.
 Be brief.
 If the question refers to a figure, describe the figure in a simple
and clear way.
 Write mathematical text in ordinary language:
 x^2 for x^{2};
 e^x for e^{x};
 sin^2 (t) for sin ^{2}t;
 log 2 for log 2;
 pi for π;
 theta for θ;
 alpha for α;
 beta for β;
 gamma for γ;
 delta for δ.
And so on.
The archive below contains a list of questions taken up earlier, and the
responses they got.




