If you are looking for a private tutor then you should take care of following things
What is the aim of your child?
The aim will fall under these classifications:
1) Urgent help to pass the class or an exam.
2) Long term help to guide the student up to grade level.
3) Improving student's learning and studying skills.
Choosing on what is the first thing. Picking on what will get you there is the second. If you need help to pass an exam, the best way is to find a one-on-one tutor who will come to your home and work particularly on the subject the help is required.You can also navigate to http://caddellprep.com/test-prep/shsat-prep/ if you are looking for maths tutors for your SHSAT prep.
The tutor you find must be a specialist in that subject. No long term goal is required, just a little nudge to get over the learning elevation.Looking for the long term to bring and keep the student at grade level?
Again, a one-on-one tutor, coming to your home, is best. Discover one that is both willing and able to serve the student up to grade level, while at the same time can give quick help.
Now, if you are looking to grow student performance and study skills, a training or tutoring is the best option for you. Usually, they have all diagnostic and restorative resources available.
One-on-one is for direct help and is truly best for the student. Learning centers may not be willing to help your child on subject particular problems. And they seldom see more than one student at a time. But they can be more useful in the long term.
You may need to use a combination of both. Here is the last point. Before paying for any tutoring, ask the school for help first. Many schools have before and after school tutoring, and the teacher can recommend more methods.You can read more about personal tutors by browsing the web.