I want to teach primary school children Maths, I am 17 yr old, experience in teaching my brother maths at home for his school

I am planning to find worksheets for specific topics of subjects to do and give homework out. The lesson will be one to one online so that I can ensure the child has understood each topic in Maths. The Maths lesson will contain me explaining each topic, demonstrating on a whiteboard and ensuring I check that the child has written the correct answer by asking them how they overall got to there answer.