In order to motivate indigenous learners to learn science and instil their positive attitude towards the subject, conducive and simulative learning environment need to be specifically designed for them. This research is aimed to determine the effect of Kayeu Learning Outside the Classroom (LOC) primary science module on intrinsic motivation of indigenous learners. The treatment group (n=38) used the Kayeu LOC primary science module while the control group (n=35) used the conventional module, which are materials mandated by Ministry of Education (MOE). Three-point Likert scale intrinsic motivation questionnaire consisting of general and science constructs was administered before and after T&L to both groups. Analysis of MANOVA repeated measures showed there were no significant effects of the groups and time on the intrinsic motivation, and there was no significant interaction effect between time and the groups on intrinsic motivation. However, follow-up simple interaction analysis found that there is a significant main effect of the time and significant effect of interactions between time and the groups on the general construct.