tag:blogger.com,1999:blog-31820023.post7374731443003687443..comments2023-09-02T10:59:09.951+01:00Comments on Who teaches whom?: Reading, writing and 'rithmeticAilbhehttp://www.blogger.com/profile/13766624288427858144noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-31820023.post-92004217656927837002009-10-15T22:41:47.663+01:002009-10-15T22:41:47.663+01:00Rob says, in re (x+1)^2=x^2+2x+1, that he knew tha...Rob says, in re (x+1)^2=x^2+2x+1, that he knew that, but "Cooooool." I faintly remember using the formula, too, but not when or why.Ailbhehttps://www.blogger.com/profile/13766624288427858144noreply@blogger.com