This study reports on the statistical content of five U.S. textbook series written for elementary students in grades 1-5. The researchers examined 17,688 pages and coded 7445 statistical tasks to determine (1) the distribution of statistical topics within textbooks, and (2) the relative emphasis on the phases of the statistical problem solving…

Although several school districts in a southern US state use a three-tiered Response to Intervention (RtI) model to supplemental core reading instruction and positively impact student achievement, the model appears to have had nominal impact. The theoretical foundation for this study is anchored in a constructivist approach to education. Three…