The appropriateness of learning methods used contributes to performance improvement and interest in the topic, Electromagnetism, among technical students with different cognitive styles. Learning is a process in which students obtain new information and knowledge. For effective learning and to achieve academic excellence, students need to know the proper learning methods. This study identifies appropriate learning methods for technical students in order to improve the achievement of technical students of different of cognitive and to enhance their interest as presented in Witkin's Theory. This research studies a couple of learning groups engaged in product-orientation learning and conventional learning. The sample comprises 70 students from Malaysian polytechnics to determine their cognitive styles through the Group Embedded Figures Test. A pre-test, post-test and a questionnaire were used in quasi-experimental research to obtain data concerning the students' performance and their interest in learning. The results show that product-orientated learning yields the best scoring of students' performance and interest increment compared to other methods. We conclude that learning methods should ensure students' needs positively correlate with their achievements and interest. Based on the advantages of the product and its effectiveness in aiding student comprehension, this product is seen to be an appropriate learning method for technical students in Malaysian polytechnics