Low-income students and students of color are faced with pervasively lower levels of opportunity to learn compared with their peers, creating unequal opportunities for educational success. Textbooks, which serve as the backbone of the curriculum in most mathematics classrooms, present a potentially powerful tool to help mitigate unequal…

Textbooks are a widely used educational intervention that can affect student achievement, and the marginal cost of choosing a more effective textbook is typically small. However, we know little about how textbooks get from the publisher to the classroom. The purpose of this paper is to investigate the ways mathematics textbook adoption practices…

We estimate relative achievement effects of the four most commonly adopted elementary mathematics textbooks in the fall of 2008 and fall of 2009 in California. Our findings indicate that one book, Houghton Mifflin's "California Math," is more effective than the other three, raising student achievement by 0.05 to 0.08 student-level…

Textbooks are a vital component in many higher education contexts. Increasing textbook prices, coupled with general rising costs of higher education have led some instructors to experiment with substituting open educational resources (OER) for commercial textbooks as their primary class curriculum. This article synthesizes the results of 16…

Race has been a longstanding topic in the biology textbook curriculum. Yet, there appears to be no research investigating whether the treatment of race in modern biology textbooks impacts how students conceptualize race. In the present study, a double-blind field experiment employing mixed-methods is used to investigate the impact of…

Features of eighth-grade history textbooks were examined through replication of a 20-year-old study that investigated "considerateness" of textbooks. Considerate texts provide clear, coherent information and include features that promote students' comprehension, such as explicit use of organizational structures, a range of question types…

The rise of Open Educational Resources (OER) research provides data that Open Textbooks and other forms of OER may be one cost saving approach for college and university students. Yet little research has been conducted around the attitudes and perceptions of the students using these Open Textbooks. This paper examines the perceptions that students…

Educational reforms and standards have been a topic of public debate for decades, with the latest go-round being the State Common Core Curriculum Standards. But time and again those reforms have failed, and each set of standards, no matter how new and different, has had little impact on improving student achievement. Why? The textbooks. Textbooks…

In this study we examined the effects of syntactic and lexical complexity on third-grade students' comprehension of science texts. A total of 16 expository texts were designed to represent systematic differences in levels of syntactic and lexical complexity across four science-related topics ("Tree Frogs, Soil, Jelly Beans and…

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…

In 1986, the California State Board of Education rejected all 14 kindergarten-eighth grade mathematics textbook series submitted for adoption. Implications of this action are discussed. (CB)

In three series of state-adopted parallel English and Spanish basal readers, comprehension questions most frequently assessed literal comprehension, followed by inference, evaluation, and appreciation. Readability level was higher than stated for second and third grade English texts and higher for Spanish than English texts. Contains 24…

The instructional textbooks for history-social science, K-8 grades, recommended for adoption in the state of California are described in this report. The rationales for recommendation of particular texts are provided, as well as those behind the decision not to recommend other materials. A number of special issues dealt with by the adoption…

The California State Board of Education is responsible for adopting textbooks and instructional materials for use in kindergarten through grade eight. The purposes of the instructional materials program are to: (1) establish clear standards for the educational and social content of texbooks and instructional materials; (2) evaluate instructional…