Learning Mathematics Using Core Learning Model to Support Numeracy Skills and Learning Achievement of Junior High School Students

Numeracy skills and learning achievement are important aspects in mathematics learning that support students' readiness to face the challenges of the modern era. However, in reality, many junior high school students still show low and suboptimal numeracy skills and learning achievement. Therefore, a learning model is needed that can facilitate students' numeracy skills and learning achievement.The objectives of this study were to 1) analyse the effect of mathematics learning using CORE model on students' numeracy skills, 2) analyse the effect of mathematics learning using CORE model on students' learning achievement. This type of research is a pseudo-experimental research with quantitative approach. The subjects of this research were 23 students of SMP 3 Muhammadiyah Yogyakarta. Data collection techniques in this study used tests which included: 1) numeracy skill test, 2) mathematics learning achievement test. The data analysis technique in this research is hypothesis testing using paired sample t-test. The results of this study showed that: 1) learning mathematics using CORE model can support numeracy skills, 2) learning using CORE model can improve students' mathematics learning achievement.