1- Sardra . B (2004): Awarness and a new opinion borline; universih of ber line , ist printing 2004.
2- Wrangll, C.& March, S (2008); Development of Conceptual Knowledge And Interest About Energy And Environment ; International Journal Of Science n 5.
3- De Bono , Edward (1983); The Direct Teaching of thinking as askill. Phi Delta kappan.
4- De Bono, E (1991) The Cort thinking program in : A . Costa (Ed) Developing minds : Program for teaching thinking ( pp . 27 – 32).
5- De bono,E ( 1988 ) Course in creativity lateral thinking , module ,1, Ruwi : management & marketing consultancy services.
6- De bono,E ( 1994 ) Course in creativity lateral thinking , module ,1, Ruwi : management & marketing consultancy services .
7- Edwards ,J.and Baldauf,R.(1998): "Teacing in secondary science "In Maxwell, W .(Editor). Thinking the expanding frontier Philadelphia, Pennsylvania :Franklin Institute press pp.22:44.
42- Harris , R . (1998) Introduction to Decision Making retrived , January , 20 , 2005 , from : htt//www.virtualsalt .com