This is not a commercial but Jump Math is great

Dyscalculia: News from the web:

See the link in for today. A new study confirms that people using Jump Math do make significant increases in their math performance.

A research team from The Hospital for Sick Children and the Ontario Institute for Studies in Education at the University of Toronto released a noteworthy study that followed students over the course of two years in a randomized controlled trial (RCT) funded by the US Department of Education.  The results of the extensive study showed positive effects in elementary grades on a range of math outcomes for students in the JUMP Math group. At the end of this two-year study, progress of the JUMP Math students was equal to or significantly greater than the control group on every measure of achievement and often greater than expected progress based on test norms. 

Read all about it: HERE

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