Development of JAT-KUAD Kit for teaching and learning of quadratic functions and equations in one variable topics.

This research was conducted to develop and to determine the validity of JAT-KUAD Kit as teaching aid for Quadratic Functions and Equations in One Variable topics. This research also want to determine the level of kit's usability from the perspective of Mathematics trainee teachers in Universiti Pendidikan Sultan Idris (UPSI). This kit was developed based on the ADDIE model. 50 respondents were selected through the convenience sampling for kit's usability testing and 3 experts in Mathematics Education were selected for the kit validation. Two instruments were used in this research, namely the kit validity form and the kit usability questionnaire. The findings of the research showed that based on the Content Validity Index analysis, the JAT-KUAT Kit has a satisfactory validity, meanwhile the result from the descriptive analysis showed that this kit has a very high level of usability. Therefore, it can be concluded that the JAT-KUAD Kit can be considered as a good manipulative teaching aid to be used in the teaching and learning process of Quadratic Functions and Equations in One Variable topics. [ABSTRACT FROM AUTHOR]