[blindkid] Math in your head

[Wendy Molle]

If your answers are all correct, then math in your head is great, BUT if your answer is not correct, the teacher cannot figure out where you went wrong.  They have to reteach the entire concept to you (when it might have been a silly arithmetic error or misplacing a digit).  Also, if there is no work and the answer is wrong, you get NO credit.  If the assignment or test is short, every question counts for a lot of points.  You could fail a test with only one answer (done all in your head) wrong.
 
Just a thought...
 
Wendy Molle
Schoharie Elementary