Monday, February 22, 2010

More Things From Third Grade

"If 99 times 99 is 9801, then 9.9 times 9.9 is 98 and one one-hundredth."

This from the kid who asked to take a level to class to level his desk; he's tired of his pencil rolling away. (We let him take one; we'll see what his teacher says. lol)

Today, he got in a little bit of trouble because they had a lesson on symmetry, and he refused to stop working on his project when it was time to move on.


Wednesday, February 10, 2010

A Perfect Lesson

Cameron just got done teaching me that a "perfect number is a number that is equal to the sum of its positive divisors." What 3rd grader knows that?! What grade schooler even understands that?!
Now, he and Michael are looking up different types of numbers on Wikipedia: perfect numbers, abundant numbers (sum of divisors is greater than two times the number), semi-perfect number (a positive integer that is equal to the sum of all or some of its proper divisors), super perfect number . . . and so on.