Visit the public schools in your area that you believe are reasonably good. You can prepare a list from the local phone directory.
Go online and find out if the public schools in your area have a Web site or if there's any relevant information available about them online.
Meet the school principal or the director. Ask for information about the types of program the school offers. Meet some of the teachers, if you can.
Ask your relatives, friends or neighbors whose children study in the public school of your area. Find out from the type of training teachers have as well as the vision and rules the school has.
Get the prospectus of the public schools you're researching. Compare the course curriculum.
Make sure that in case you're changing your child's school, the new program should be similar to previous one. Otherwise this would create difficulties for the child's progress.
Evaluate your child's learning capabilities and requirements. Decide accordingly.
Note that the public school should teach all the basic subjects as well as specialized ones that are practical and relevant.