The Calculus Trap by RR is worth reading

http://www.artofproblemsolving.com/Resources/articles.php?page=calculustrap

as is
Why Discrete Math Is Important

http://www.artofproblemsolving.com/Resources/articles.php?page=discretemath

For those with DYS children, the RR talk is available on the private DYS site.



LMom