The 6E Learning by Design (LbD) model can enhance student teachers' development of competence for integrating technologies in the classrooms including Artificial Intelligence (AI). However, teacher educators rarely use the 6E LbD model in supporting and encouraging student teachers to integrate AI applications in their classrooms effectively. To attract teacher educators to use the 6E LbD model, in the present study, we modeled learning activities for each phase. We also examined the impact of the 6E LbD model in supporting student teachers to integrate AI in the classroom. We adopted a Participatory Action Research approach implemented in two cycles. We collected data from 35 student teachers who were selected purposively. We collected data through observation, reflective journals and document analysis. We observed student teachers during the classroom activities and analysed their lesson plans and reflective journals, and interpreted data based on a thematic analysis. Findings show that there are various activities facilitating learning in different phases of the 6E LbD model. Also, findings show that the 6E LbD enables student teachers to develop skills and competence for integrating AI in their classrooms. The findings show that an evidence-based approach will motivate teacher educators to use the 6E LbD model.