Table 4 Thematic analysis of students’ opinion of using mobile and problem-based learning to develop critical thinking and problem-solving skills.

From: Integrating mobile learning and problem-based learning in improving students action competence in problem-solving and critical thinking skills

Themes

Codes

Effective approach

Useful, made learning easy, good for learning, productive

Improved skills

Assisted, developed, advanced

Certain challenges

Difficulties, setbacks, struggles, malfunction