Some research shows that Physics Students have basic knowledge about Forces and even the Physics Students who have studied Basic Physics and Mechanics have significant difficulties with the Students who only studied Basic Physics. Compatible and creative learning models can improve the ability of students as individuals and socially. This research aims to identify the problems the students usually faces in solving basic physics problems, especially the Forces of Equilibrium System when a stairs leaning against a wall. The WIOTS (Work-It-Out Teaching Strategy) model can improve individual abilities by referring to ZPD or the Proximal Development Zone that can also improve the abilities of each individual as a social creature. Research that has been conducted to 26 Physics Students using the WIOTS model by gave them 2 tests, first is Pre-Test and then the treatment (lecturer) using WIOTS 6 stages, and finished it with second test, Post-Test. It showed that the minimum value obtained before the treatment is 22.00 while the maximum value is 78.00. After the treatment, minimum value obtained was 63.64 while the maximum value was 90.91. This shows that the treatment using the WIOTS Learning Model is proven to be able to improve the Physics Student learning outcomes in learning Physics of Equivalence of Objects.