Understanding complex systems such as ecosystems is difficult for young K-12 students, and students' representations of ecosystems are often limited to nebulously defined relationships between macro-level structural components inherent to the ecosystem in focus (rainforest, desert, pond, etc.) instead of generalizing processes across ecosystems…

The purpose of this study is to determine the effect of computer animation technique on academic achievement of students in the "Solar System and Beyond" unit lecture as part of the Science and Technology course of the seventh grade in primary education. The sample of the study consists of 60 students attending to the 7th grade of primary school…

We analyze how three seventh grade mathematics teachers from a majority Latino/a, linguistically diverse region of Texas taught the same lesson on interpreting graphs of motion as part of the Scaling Up SimCalc study (Roschelle et al., 2010). The students of two of the teachers made strong learning gains as measured by a curriculum-aligned…

We compared two approaches to teaching United States history to students with learning disabilities (LD). We randomly assigned students in seventh through ninth grades (n = 44) to separate treatment groups (strategy-based instruction or traditional instruction). In both approaches, students were taught identical content on two units of the Civil…

The purpose of this study was to investigate the effects of implementation of student-centered activities based on multiple intelligences (MI) theory on grade-7 students' attitudes toward and perceptions of science. While the experimental group consisting of 25 students was taught a unit on the atom and atomic properties using strategies based on…