Plotting points; plotting products.

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About the XY Chart Multiplication Table

Reliable mental math skills lead to a lifetime of pleasure, enjoyment, and successful critical work. The XY Chart™ brings together two fundamental visual tools—the 10 x 10 multiplication table and the Cartesian coordinate system—in a natural way that makes learning them easy. Traditional multiplication tables organize the numbers in ascending order from top to bottom, […]

Just 21. Our children can do it.

Learning the multiplication table by heart is essential. No matter what fashion of math education the schools are following, we parents ought to make sure that our children learn the 100 multiplication facts by heart. This is very likely best achieved at home. It’s not that difficult. When you consider certain patterns and the easier […]

Multiplication and Calculus

Through the placement of the single digit multiplication facts within the first quadrant of the Cartesian coordinate system connections between arithmetic and calculus become visible. Consider the similarities between the product as the area of a 5 by 6 rectangle and the area under the curve of the constant function, f(x) = 6, over the […]