algebra all in one lesson. This took about 15 minutes from start to finish...15 is a lot to handle when you are four. Note if he had to get out 15 individual units this problem would be nearly impossible and would take a lot longer.
a lot more math in their heads than students taught using the current completely ineffectual way we use now.
He helps me do the same screen cast:
If you enjoyed this post you will also enjoy this popular post and screencast showing much less structured play with clay for learning math concepts. Math enrichment and a math rich environment go hand in hand.
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This post remains popular going on two years later...he was just 4 and 1/4 when we made this...now algebra is no big deal and fractions and multiplication are fun...he is the go to guy in his kindergarten class when kids want to know what to do when they have math.
And now he is the go to guy in 1st grade. Please take a moment and watch the vid on the concepts page under the heading "Early Exposure to Math Concepts Helps Ensure Success." It's only 3 and a half minutes long and should help dispel the myth that you don't want to start math too early. There is no "too early."
“I care not what subject is taught if only it be taught well.” ~Thomas Henry Huxley