The purpose of this study is to evaluate educational computer aided teaching materials (CATM) which designed by skilled prospective class teachers towards 4 and 5th grade science level according to the principles of an educational software and teaching methods and techniques. Therefore, materials were firstly scored with an educational software assessment scale and findings were presented in the tables after calculated by Microsoft Excel. Secondly, prospective teachers’ using level of teaching methods and techniques, and measurement and assessment methods and techniques were revealed from their CATM's interface. The sample of the study was consisted 29 prospective class teachers. As a result of the study, although prospective teachers designed successive materials, it is understood that they have paid more attention to visual design properties and functionality such as linking between pages, colored backgrounds, interactive buttons, interactive guidance and assistance properties, and multi-media properties excluding principles of editing content criteria. They tried to present science subject by concept mapping, brainstorming, case study and demonstration as teaching methods/techniques with assessment techniques such as multiple-choice test, matching, concept map as assessment respectively. In general, the findings of the study showed that designing and developing CATM allowed prospective teachers to increase their educational technology competencies, self-esteem and confidence. In conclusion, it is revealed that prospective teachers are in need of experiences and environment about how to integrate pedagogy and technology knowledge.