New Study: Best Math Intervention Approach for First-Graders

A new study concludes that those first-graders who are behind their peers would have learned more if their teachers had just taught them to add and subtract the old-fashioned way. And then got the students to practice it a lot.

http://educationbythenumbers.org/content/kumon-worksheet-style-drilling-might-effective-little-kids-struggle-math_1564/