You do not need to be a teacher to help your child do well in school. What matters most is interest, routine and encouragement.
Set a daily homework routine
Choose the same time and a quiet place every day. A table, good light and no television make a big difference. A regular routine helps children start without arguments.
Ask questions instead of giving answers
When your child is stuck, ask "What do you think the question is asking?" or "What have you tried so far?" This builds thinking skills. Giving the answer teaches the child to wait for help.
Talk to the teacher
Meet or message your child's teacher early, not only when there is a problem. Ask what your child finds hard and how you can support the work at home.
Make reading a habit
Encourage your child to read for 15 to 20 minutes every day: storybooks, newspapers, or even articles on topics they enjoy. Reading improves vocabulary, spelling and understanding in every subject.
Praise effort, not only marks
Say "I can see how hard you worked" instead of only "You got full marks". Children who are praised for effort keep trying when work gets hard.
When to get extra help
If your child keeps struggling in one subject despite effort, a tutor can give the personal attention a large class cannot. Look for someone patient, qualified and a good fit for your child.