Recently, they have started to market their products by Core Curriculum areas — Reasoning/Problem Solving, Language Arts, Mathematics, and Science.
The Homeschool Crew was fortunate enough to review a product from their Language Arts series — Language Smarts, Level C, targeted for grade 2. This huge book (320 colorful pages!) teaches language arts concepts and skills including vocabulary, grammar, punctuation, reading and writing skills. And it does so with a variety of fun activities.
Other members of the Crew received Balance Benders Beginning, which is meant for kids in grades 2-6. This series is part of their critical thinking line, and it is specifically introducing algebraic skills and deductive thinking using balance puzzles.
Like other Critical Thinking Company products, these books are reproducible for use within your family.