Over 100 discussion questions and activities, and 500 questions, fill this comprehensive workbook. The book covers science, math and social science for fourth grade. If you are homeschooling (or if you are just trying to get extra practice for your child), then you already know that social science workbooks and curriculum can be expensive. HomeSchool Brew is trying to change that We have teamed with teachers and parents to create books for prices parents can afford. We believe education shouldn't be expensive. Each subject may also be purchased individually.