(Grades PreK & up). MathSafari® is the fun-filled, fast-action, interactive learning system specifically designed to teach math. It builds basics and more advanced math concepts. MathSafari lessons correlate with National Council of Teachers of Mathematics (NCTM) standards. User’s guide includes simple, easy-to-follow examples and instructions. Includes MathSafari® unit, two 1/4" headphone jacks, and user’s guide. Requires four D-cell batteries or optional AC adapter (not included). Designed for use with MathSafari lesson units.