Balance Quest is a numeric progression puzzle consisting of a set of rectangles arranged within a hierarchical grid. Some of the rectangles contain positive or negative integers, while others are blank. The objective is to fill in each blank rectangle with an integer in a way that “balances” the puzzle mathematically. The puzzle features three skill levels (Easy, par, and challenging) with three grid sizes: BQ Sixteen (small-grid), BQ Thirty-two (medium-grid), and BQ Sixty-four (large-grid). Solve time can range from 5 minutes for the "easy" small puzzles to hours for the "challenging" large puzzles. This puzzle is for ages 10+.

Teach and reinforce essential early skills with these 20 self-checking, five-piece puzzles. Each puzzle features a center piece and four matching puzzle pieces. Unique die cuts on each puzzle make self-correction a snap! These 8" x 8" plastic-coated puzzles are durable and easy for small hands to manipulate. Includes an activity guide. For use with Grades K-2.

Physics is equally appropriate for average and gifted students. The entire program is based on introducing a topic to a student and then allowing them to build upon that concept as they learn new ones. Topics are gradually increased in complexity and practiced every day, providing the time required for concepts to become totally familiar. Includes: Student Textbook (Hardcover) 100 Lessons Appendix with selected tables Periodic Table of the Elements Answers to odd-numbered problems Homeschool Packet With Test Forms 25 Test Forms for homeschooling Answer Key to odd-numbered Textbook Problem Sets Answer Key to all homeschool Tests