To address the difficulties experienced by students when dealing with challenging HOTS math problems, the selection and use of appropriate learning models and media is essential. This study investigated the impact of Wordwall-assisted Problem-based learning (PBL) models with HOTS problems on students’ critical thinking and problem-solving skills in mathematics. This type of qualitative analysis uses descriptive methods. The subjects of this research were 31 grade 8 junior high school students in Batu, consisting of 22 male and 9 female students. Data collection methods are through questionnaires and test methods. Data analysis related to the validation of responses from 31 students was obtained from questionnaire results based on the ratio of student responses to the media, and data analysis was related to tests of students’ critical thinking and problem-solving abilities. Established on the results of data analysis through research instruments in the form of data collected from student response questionnaires about the use of knowledge media, HOTS test questions discussed by SPLDV related to students’ critical thinking abilities and problem-solving abilities. Students’ critical thinking and mathematical problem-solving skills are very high, with achievements of 80.27% and 80.20%, respectively. It is expected that teachers can use the PBL method and Wordlwall learning media so that student compatibility becomes better.