Although basing instruction on learning trajectories (LTs) is often recommended, there is little direct evidence regarding the premise of a LT approach--that instruction should be presented (only) one LT level beyond a child's present level. We evaluated this hypothesis in the domain of early shape composition. One group of preschoolers, who were…

This study investigates the effects of integrating literacy instruction with biology coursework on high school student learning. It would investigate the relationship between the growth in reading achievement and biology learning. It will target schools serving especially large populations of African American and Latino students. The project will…