The document summarizes two studies on the effects of virtual labs and cooperative learning on student achievement and motivation in anatomy instruction. In the first study, students who used cadaver labs performed better than those using virtual software alone. The second study compared virtual software with cadaver labs, using a jigsaw cooperative learning technique. Results showed students who participated in jigsaw activities had higher achievement, motivation, and epistemic regulation than students working individually. The jigsaw technique helped ameliorate decreases in motivation observed in students using only virtual software.