Highest Level Social Studies Problem Collection

1st Grade - TIME FOR KIDS (SOCIAL STUDIES & SCIENCE) 30 Nonfiction Reader Books

3rd Real-World Problem Solving - Math & Science/Social Studies (ON grade level)

2nd Grade - TIME FOR KIDS (SOCIAL STUDIES & SCIENCE) 30 Nonfiction Reader Books

Highest Level Science Problem Collection - Educational

Super Efficient Social Studies Problem Collection

Highest Level Japanese Problem Collection - Educational