My daughter loves the tests in Common Core Assessment Workbooks. She found the material a level higher than her practice tests from Spring Board text book. The test material challenged her ability to apply the concepts and tested her problem-solving skills.Also, the Lumos material is a great way to prep your kids for SAT or ACT. To make the best use of the practice tests, please have kids complete the Common Core practice workbooks before attempting any of the assessment tests. I highly recommend Lumos Common Core assessment workbook to parents who want their kids to excel in math and achieve higher grades in class or state assessment exams.