Student Errors in Completing Mathematical Story Problems Based on Watson's Criteria During Pandemic COVID-19

This study aims to describe students' mistakes in solving story problems based on the Watson Criteria. The material used in this study is a two-variable linear equation system and was implemented at SMP Negeri 1 Kembaran. This type of research is a qualitative description. The subjects of this study were students of 7th grade class who were selected through purposive sampling technique. Students are grouped into three groups, namely groups of students with high, medium, and low learning achievement. Three students were selected from the three groups. Data collection techniques using written tests and interviews. The data validation test used technical triangulation by comparing the results of written tests and interviews. The results showed that 1) high learning achievement students made mistakes in the response level conflict stage, missing conclusions, missing data, and indirect manipulation; 2) student learning achievement is making mistakes at the stage of the problem of skill hierarchy, response level conflict, missing conclusions, missing data, and indirect manipulation; and 3) students with low learning achievement made mistakes at the stage of incorrect data, skill hierarchy problems, inappropriate procedures, response level conflicts, missing conclusions, missing data, and indirect manipulation.