If you have a child in High School, there is some serious stress that goes along with the SAT and ACT tests! I remember my test like it was yesterday and I definitely wish I would have taken it a little more seriously and prepared beforehand.
Number2.com and 4tests.com are two sites that will let you prepare for the SAT and ACT for free! You can use their practice tests to know what kinds of questions you might see on the actual exam.
