Jason's homework
星期三 十二月 19, 2007 11:08 pm
Every night I check Jason's homework. Tonight I found I had trouble to understand one of Mathematics problem.
Last time I didn't know what was the family number, so I googled it and found what it was. Since I was grown up in China, a lot of terms in English I had no idea what they are. Sometimes I find it is difficult to explain or to understand.
So tonight I googled it too for regroup...and I found it really help a lot. Here are the links to share.
http://www.mathematicallycorrect.com/books2a.htm