Well-informed decisions on curricular materials can be an efficient way to boost student achievement. Prior studies have employed experimental and quasi-experimental designs to investigate the effects of textbooks on mathematics achievement. This is the first study to consider textbook effects in social studies education. Within the context of a…

Textbooks are often a core element of curricula and delivery of classroom instruction and have long been a source of controversy. The textbook adoption process has become less about content and more about political/cultural pressure. Special-interest groups from the right and left exert enormous influence on textbook content through bias and…