Current study aimed to examine the effects of web-based instructional material enriched by concept maps, the academic achievement of 7th graders in "Structure and Properties of Matter" unit. The study utilized a quasi-experimental model with pretest-posttest control group design. A sample of the study was composed of 58 students.…

Science educators and school administrators are reexamining the educational value of animal dissection in the nation's schools and are focusing on simulation as an instructional alternative. One implication of the debate is that simulations can lead to equivalent learning to hands-on dissection. The second implication is whether dissection is…