Summer Study: For the Child Goin into Second Grade While it is important for children to have down time over the Summer, but it also important that they retain the key skill learned the previous year. Flash Kids Summer workbooks solve the problem, with fun activities that review the previous year's math and reading lessons. This workbook will have your second grader well prepared for the new school year. Paperback, 160 pages. Ages 7 to 8 years old.