Every new academic year, I have a challenge when I need to teach my students, either in Mathematics and Technology Studies, especially when we are integrating STEAM (Science, Technology, Engineering, Arts and Mathematics) education in my lesson. My students have difficulties to follow my lesson because their basic knowledge is still lack or even they dont have it. As a teacher, I cannot let my students to continue the lesson because they will not understand. So, I try to re-teach them with the basic knowledge but it takes time. It can take more than 3 days and it will affect to our weekly planning and the learning outcomes. If only less than 3 students, I can handle it. But what if, more than 5, that's a big challenge for me to re-teach them.