This study aims to determine the effect of independent variables of learning resources and motivation to learn the results of science learning by controlling the initial ability. In addition, we also want to know whether or not the interaction between the two independent variables that affect student learning outcomes in science subjects. The method used to carry out this research is experiment. The results of the study were: 1) Science learning outcomes between students using learning modules were higher than those using textbooks after controlling initial skills. 2) There is an interaction effect between the learning source and the learning motivation on the learning outcome of IPA after controlling the initial capability. 3) For groups of students who have high learning motivation, science learning outcomes between groups of students taught with modules are higher than those of students taught by textbooks after controlling initial ability. 4) For groups of students who have low learning motivation, there is no difference in science learning outcomes between groups of students who are taught using modules or those who are taught using textbooks after controlling the initial abilities.