There are many different approaches to classroom instruction, but they can typically be grouped into two broad philosophies. The first is teacher-centered, direct instruction, and the second educational philosophy is called progressive. Indeed our experience has proven that teacher-centered, direct instruction is more effective and efficient, especially for struggling students. In fact, there is overwhelming research supporting teacher-centered instruction. We have built upon this approach, developing and refining our own specific version of direct instruction, called Explicit Direct Instruction.