Curriculum
As described in the beginning of this chapter, curriculum documents (standards) have a significant influence on what is taught, and even how it is taught. In addition, the textbook is a very influential factor in determining the what, when, and how of actual teaching. What is becoming increasingly complicated is how teachers and school systems attempt to align existing textbooks or other curriculum materials with the Common Core State Standards, Curriculum Focal Points, or other key documents.
Textbooks greatly influence teaching practice. A teacher using one textbook may be more likely to cover many topics, spend one day on topic, use a teacher-directed instructional approach, and focus on procedures. Using a different textbook ( that is more standards-based), a teacher may devote more time to a concept, teach it more deeply, and use a student-centered approach. Writing, speaking, working in