Sheri, a 5th grader, finds the measure of an
inscribed angle
Sheri wrote a geometric proof, in her own way
to show the inscribed angle is 30°, when its arc is 60°. Fine
job Sheri!
Back to Sheri's first page
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
uses binary numerals to make the Magic Number Game cards
Sheri
changes the shape of a dog using matrices
Sheri
enlarges a shell using the pantograph
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
To order
Don's materials
Mathman home