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The authors designed a science and engineering curricular program that includes design features that promote student interest and motivation and examined teachers' and students' views on meaningfulness, motivation and interest.

The research approach consisted of mixed methods, including content analyses and descriptive statistics.

The curricular program successfully included all four of the US National Academies of Sciences' design features for promoting interest and motivation through scientific investigation and engineering design. During interviews, teachers and students expressed evidence of design features associated with interest and motivation. After experiencing the program, more than 60% of all students scored high on all four science and engineering meaningfulness and interest survey items.

A curricular program that extends science learning through the engineered design of solutions is an innovative approach to foster both conceptual knowledge development and interest and motivation in science and engineering.

Despite the benefits of historical thinking pedagogy, many teachers continue to require students to read textbooks. Contained within textbook narratives are particular types of implied causation, asyndetic constructions, which may limit students’ abilities to fully comprehend certain textbook passages. This study examines how asyndetic constructions influence students’ comprehension of causal events. Twelve middle school readers were asked to read a US History textbook passage and answer questions related to the asyndetic construction. They also were asked to reason about their answers. Findings suggest that good middle school readers do not identify asyndetic constructions as problematic to their comprehension even though they often incorrectly answer questions related to these constructions. Findings also indicate that, when middle school readers recognize the asyndetic sentences as causally related, they often disregard and/or overlook the mental processes in the text that provide clues for explaining that relationship. Based on these findings, teachers need to recognize the complexity of textbook language and structure when assigning such readings, taking special care with poor readers who have fewer linguistic resources for making meaning of asyndetic constructions than good readers.