Mathematics Teaching Tools for Blind and Visually Impaired Students
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Math Window® Trig-Calculus Add-On Kit – Nemeth
Our Math Window® Trig-Calculus Add-On Kits are now available! These kits, when combined with Math Window® Geometry kits (sold separately), provide the BVI student with the tools they need to understand trigonometry, analytic geometry, and calculus concepts. The Trig-Calculus kits include over 300 print/Braille magnetic tiles that, when used with the Geometry tiles and graphing board, allow students and instructors work math problems from trig and hyperbolic functions to derivatives, partial derivatives, and integrals. Tiles are designed with convenient trig and calculus expressions to save students and instructors valuable time setting up problems.
All returns must be postmarked within 30 days of the purchase date. All returned items must be in new and unused condition, with all original tags and labels attached. For defective or damaged products, please contact us at 724-285- 5428 to arrange a refund or exchange.
To return an item, please notify us by phone (724-285- 5428) or email (firstname.lastname@example.org) prior to shipment. Place the item securely in its original packaging and include a copy of your purchase order or our invoice and mail your return to the following address:
Wolf Products, Inc.
106 Purvis Road
Butler, PA 16001
Please note, you will be responsible for all return shipping charges unless thereason for return is due to our error, or if items were damaged in shipment.
After receiving your return and inspecting the condition of your items, we will process your return or exchange. Please allow at least 5 days from the receipt of your item to process your return or exchange. Refunds may take 1-2 billing cycles to appear on your credit card (or other) statement, depending on your credit card company. We will notify you by email when your return has been processed.