Available Coupons & Store Credits (Just click to use!) Cart Summary Remove item Thumbnail image Product Price Quantity Subtotal × Building Thinking Skills Level 1 (Revised) $6.95 Building Thinking Skills Level 1 (Revised) quantity $6.95 × Homeschool Planet 30-day Free Trial with Free Lesson Plan $0.00 Homeschool Planet 30-day Free Trial with Free Lesson Plan quantity $0.00 × Building Thinking Skills Level 2 (Revised) $6.95 Building Thinking Skills Level 2 (Revised) quantity $6.95 Coupon: Apply coupon Update cart Cart totals Subtotal $13.90 Total $13.90 Proceed to checkout