Sheri reduces the size of a shell with a Pantograph

I used the Pantograph to convert the big star to the little star!

See the IES Java applet for the pantograph.

This pantograph was made by GRAPHICRAFT, Westport, CT and was purchased at a local art supply store.

See Roxana's enlarging Bugs Bunny

Back to Patterns in Mathematics
Sheri writes 64 using exponents
Sheri solves the quadratic equation x² - x - 1 = 0
Sheri finds the base for Don's age of   114_? = 71₁₀
Sheri uses the quadratic formula to find base for Don's age of   114_? = 71₁₀
Sheri finds the measure of an inscribed angle
Sheri uses binary numerals to make the Magic Number Game cards
Sheri changes the shape of a dog using matrices
Sheri moves a parabola and finds the equation
Sheri finds the ratio of The Volume of a Pyramid / The Volume of a Cube (3 ways)
Sheri works with the sand pendulum
Sheri figures out a rule for The Tower Puzzle
Sheri starts Trig

To other discoveries