Every first grader should have their own math shark!  It's the perfect tool for memorizing their math facts.  Timing themselves each time instills their internal desire to beat that time the next day.  Our family has used math sharks for early elementary mental math going into our second generation now.  That's not all.  This handy tool prepares students for math memorization beginning with one digit addition and subtraction and goes all the way to pre-algebra.  Take a look.  It's so worth the $40 to never have  to teach your own child math again.