How can one make a 6-year-old study without losing one's temper?

Both you and your child should be rested before starting daily study. Fix a regular time for study daily. For a 6-year-old even half an hour is sufficient. Teaching requires a lot of patience. The things that we find easy is new and difficult for the child. When you feel that you are losing temper take a break. My own experience says that kids get scared when the parents lose temper while teaching and cannot grasp things. Have loads of patience!