1. Innovative high school biology curriculum with no compulsory topics;Agrest,1993
2. Detailed analysis of misconceptions as a basis for developing remedial instruction;Amir;The American Biology Teacher,1992
3. A comprehensive use of concept mapping in design, instruction and assessment;Barenholz;Research in Science and Technological Education,1992
4. Test on understanding science, Form W;Cooley,1961
5. Information processing within and outside the school curriculum by students in agricultural schools as a starting point for instruction;Dreyfus,1975