This study aims to improve students' skills through software-based make-up learning media with the help of the Google Site application. The research method used is research and development (R&D) with the ADDIE model. The approach used is a quantitative approach. The results of this study were obtained from the values ??of 8 media expert validators, by obtaining data with an average coefficient value of 0.90-0.95. Valid data related to learning media was obtained based on the results of expert validators getting high valid values. The trial in this study amounted to 70 beauty education student participants getting high average values, so it can be concluded that make-up media can improve students' abilities.

This research aims to create an instrument to measure critical thinking skills in algebra material for students at SMP N 1 Percut Sei Tuan, especially for class VII students. The research was carried out on October 24 2023 using the R&D (research and development) approach and the Borg & Gall model which has 10 stages, namely: data collection, planning, product draft development, design validation and revision, product refinement resulting from field trials, field trials ( large groups), product refinement, and implementation. This research produced a reliability value of 0.702 with 60 respondents and 5 questions, which states that the 5 questions were reliable. By carrying out this research, it is possible to determine students' critical thinking abilities and at the same time improve the critical thinking abilities of students at SMP N 1 Percut Sei Tuan..