Several of his publications and inventions have be reviewed by InventionReviews.com, and are available at Amazon.com, including;WARP SPEED MATH, detailing the quickest known way to master math tables; simultaneously if desired!WARP SPEED MATH REFERENCE CHART, which expedites the memorization of math tables by using clusters and the Commutative Property of Addition and the Commutative Property of Multiplication.WARP SPEED FLASH CARDSWHAT ARE THE ODDS? Provocative questions and evidence regarding the existence of the God of the Bible. Michael Stack is a Christian author, inventor, and educator with over 20 years teaching experience in the fields of Math, Science, General Education and Special Education. He is a former member of MENSA, and recipient of the Teacher of the Year Award.

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