Fit-Rithmetic Plank Denominating Catch

The why? By having to attend to multiple physical and mental processes, your brain must acclimate to the stress response. The brain typically has errors when subjected to an overload of stimuli. By proxy you acclimate to this pseudo stress and get more comfortable in these uncomfortable situations!  In this drill you engage every aspect of being:
•physical: core engaged, hands proprioceptively put in position •visual: having track the ball, find equations •Decision Making: which color been does the ball go based on the sum. Also changing hands each throw.
•Working Memory: to factor the equation, remember where to put the ball