A general learning impairment model and a reasoning insight model, both in rats, were reviewed for parallels to theories of human cognitive deficiency, leading to the conclusion that animal models of the cognitive deficiency states of mental retardation are underutilized and that human mental retardation researchers would benefit from greater…

One area explored in the second (in-depth) phase of the Learning in Science Project was "children's science," defined as views of the world and the meanings for words that children have and bring with them to science lessons. The investigation reported focuses on students' (N=39) ideas on the concept of "animal." Data were…

Many students, even after formal science instruction, have not developed a scientifically acceptable concept of "living,""animal," or "plant." Therefore, as part of the action-research phase of the Learning in Science Project, a working group was formed to explore (with teachers) some possible strategies aimed at…