- CEMC Home
- About Us
- Contests
- Courseware
- CEMC Digital
- CEMC in Person
- Books
- Master of Mathematics
for Teachers - Educator Development
- Make a Difference
- Frequently Asked
Questions
P4W1: Magic Squares
Magic Squares are reviewed and explored, and ways to create new ones are
suggested.
P4W2: Dissecting Squares
Seeing 'Squares in Squares' and constructing specified figures helps to
develop the two spatial abilities eye-hand coordination and figure-ground perception.
(Posted on 30 May 1999.)
P4W3: Numbers in Order
Various number puzzles with multiple right answers entice students to use
and improve their computational skills. (Posted on March 1, 2000.)
P4W4: Folding Fun
Imagining the results of folding squares, circles, rectangles and parallelograms
improves spatial abilities and introduces the concept of symmetry. (Posted on
March 6, 2000.)
P4W5: Putting Numbers
in their Places
Concepts such as greater than, less than, and between are used in providing
clues to the solutions of these problems. (Posted on March 6, 2000.)
P4W6: Paper Punching
Punching holes in folded figures and predicting the design when unfolded
makes an excellent exercise in visualization. (Posted on March 6, 2000.)
P4W7: Wrong Numbers
Estimation, mental computation, use of calculators, and a variety of problem
solving strategies come into play in finding unneeded numbers in these sums.
(Posted on March 6, 2000.)
P4W8: Magic Triangles
and Other Figures
Like magic squares, these problems involve arranging sets of numbers to
produce the same sum on each side or diameter of a figure. (Posted on March 6,
2000.)
P4W9: More Wrong Numbers
Explaining strategies to a partner and checking solutions with a calculator
add to the fun of rooting out the 'wrong' numbers in double (row and column) sums.
(Posted on March 6, 2000.)
P4W10: Dissecting Triangles
Equilateral triangles superimposed on one another in various ways provide
lots of opportunity for exercising spatial abilities. (Posted on March 6, 2000.)
P4W11: Math Letters
Giving the letters of the alphabet numerical values is the basis for a set
of problems involving the 'values' of various mathematical terms. (Posted on
March 6, 2000.)