1. Two scales of attitudes toward mathematics;Aiken;Journal for Research in Mathematics Education,1974
2. Arizona Statewide Report,1989
3. Teaching thinking skills: Theory and practice;Baron,1987
4. Improving thinking skills: Defining the problem;Beyer;Phi Delta Kappan,1984
5. Spontaneous strategy use: Perspectives from metacognitive theory;Borkowski;Intelligence,1987