Do you think you are not educated enough to teach your child basic mathematics? Basically to teach your child mathematics you do not need to be college educated. You just need to find out how you can start the lessons.
Using math, out loud, in every day situations is a great start. Suppose you are cooking in the kitchen and your child is playing next to you. Have your child help you measure. You can multiply a recipe and ask for their help. You can talk about ratios, fractions, and many other math related ideas just while making dinner.
Also, have a coin bank for your child. When your child asks to buy something at a store, instead of buying it immediately you can ask them to note down the amount. Make deals for them at home so that you can start paying them in change and ask them to save it inside their bank. Ask them to keep on counting as the money grows up inside the bank until it reaches the price of the game or toy that they wish to have. You can use almost any type of coin bank for this, but the best ones can be seen through, so a jar may work better than a piggy bank. This not only teaches them patience and basic math skills, it also teaches them how to save and budget money.
You might not have thought about these small things before, but everything in this world can be related to mathematics. There are many ways through which you can help your kid to learn math and get good grades in school. Parents just need to find the proper trigger inside them to make the child want to explore math. Once they start learning this subject using real-world scenarios, they will begin to grasp it much better.