I agree with the Author 100%. Everyday Math is a train wreak!! When my DS6 started school, he had already mastered the concept of multiplication. By the end of the multiplication section of EM he had lost that ability. Why? Because everyday math teaches many different methods to get the answer. They have partial products, lattices (the ultimate insanity) and others. The idea is that each child will latch on to one method and learn. Being the little perfectionist that my DS is, he tried to implement all of the methods reasoning that if one was good then all of them together should be better.
I had to reteach him to multiply and had a conference with his math teacher regarding screwing up concepts that he already knows. He know takes a unit assessment on each new section prior to being introduced to the material. Next year he is supposed to use connected math but I haven't heard anything good about it either.
