ABSTRACT
The purpose of this study was to improve the learning outcomes of Mathematics in first grade students atSD Negeri Nganti I Class I, Ngraho District, Bojonegoro Regency in the 2024/2025 academic year
The method used in this research is the class action research method. The research subjects were first grade students in Nganti I State Elementary School, Ngraho District, Bojonegoro Regency, totaling 14 children consisting of 7 boys and 7 girls. This Classroom Action Research was conducted in January 2025. The target of this research is the achievement of minimum completeness standards, namely individually students must reach a score of 65 and classical completeness of 85.
The research was conducted in two cycles with one meeting each. The results showed an increase in mathematics learning achievement in the material of number counting operations in class I of Nganti I State Elementary School, Ngraho Subdistrict, Bojonegoro Regency in the 2024/2025 school year, indicated by an increase in learning completeness, the initial reflection of the completeness rate of 50 persen increased to 66.7 persen in cycle I and increased to 91.7 persen in cycle II.
Thus, the research problem can be answered and the research objectives achieved. The conclusion of this research is that there is an increase in Mathematics learning achievement of first grade students of SD Negeri Nganti I on the subject of number addition with a cooperative learning model.
Key words improvement, learning outcomes, model, cooperative type TAI