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Problems '4' The Web Archive

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.)