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Help
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, withing 24 hours on weekdays.
Customer service
All questions about your order, return and delivery must be sent to our customer service team by e-mail at yourstore@yourdomain.com
Sale & Press
If you are interested in selling our products, need more information about our brand or wish to make a collaboration, please contact us at press@yourdomain.com
The blind is perfectly capable of learning mathematics. Special printers can be used to produce instruction material with raised line drawings. Despite having access to the graphical illustration, the blind cannot follow the teacher's pointing gestures. We developed the Haptic Deictic System (HDS) which allows the blind to understand such gestures. In this book, we address issues from the conception through the design, implementation, evaluation to the effective and successful use of the HDS in inclusive classrooms.
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This product may contain chemicals known to the State of California to cause cancer,
birth defects, or other reproductive harm.
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⚠️ California Proposition 65 Warning: Some products sold on this website may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
