Products
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HeartMath
is the creator of the award winning Inner Balance™ App and Sensor for iOS devices, the emWave® Pro and emWave2.
They are recognized as one of the world’s foremost authorities on emotional physiology, stress and optimal performance.
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The Art of Mental Calculation
by Arthur Benjamin and Natalya St. Clair
Dr. Benjamin recently teamed up with middle school math teacher and artist Natalya St. Clair to produce
The Art of Mental Calculation, a workbook designed to teach elementary school students (and beyond) how to do mental additioin
and subtraction. This workbook provides over 300 examples and exercises. Through clever writing style, amusing
illustrations, and engaging dialogue, the book makes math fun and accessible to everyone. To purchase your copy (for
under $15), visit here.
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