After the coding part, I found that this tool might misuderstanding the teacher’s voice as noise. So we add a order of “when button A is pressed.” So we made a buttom for teacher to open , then they can turn on or off the microbit in order to control it. It would made the whole programme eaiser to control. We tried to help teachers with some technology to make their work eaiser, wish it can solve more problems and offers more help for the future.