LOL. I have to disagree, but then my mathy kid is not one of those who needs repetition or easily forgets previous math topics. It may have to do with the way he learns. He is an autodidact and he tends to assimilate concepts rather than memorize procedures. Anyhow, there is no reason or chance to get rusty in his case. DS will take GT Algebra II in 7th, GT Pre-Calculus in 8th, AP Calculus AB in 9th and AP Calculus BC in 10th. Our state requires four years of high school math so DS will be required to study Differential Equations, Linear Algebra and/or AP Statistics in 11th and 12th.