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, […]
The X•Y Chart: multiplication and graphing. A better tool.
What is The X•Y Chart? The X•Y Chart™ is the 10 by 10 multiplication facts placed in the rectangular coordinate system.
For whom? Students of all ages learning mathematics.
When? As soon as counting to 10 is mastered.
Where? Classroom, bedroom, refrigerator door, school binder, or on any wall.
How? Display it boldly. Math is beautiful and it matters.
With The X•Y Chart, your child will:
- see that multiplication is repetitive addition so that memorization may begin.
- receive an early introduction to graphing by plotting points
- acquire a lively foundation for visualizing future advanced concepts in algebra, geometry, trigonometry, and even calculus.
From The Blog
It’s that time of year when my beginning algebra students are asked to consider how y varies as x varies. The major challenge of the year is helping these students believe that x and y are numbers…very powerful ones. That y varies directly with x is well expressed by the equation y = kx. That […]
Educators are quick to find fault with rote memorization. Companies with products to sell, however, will spend millions of dollars on rote memorization. Mindless repetition is the essence of advertising: a good image shown many times, a good slogan broadcast over and over again. It must work. That amount of money doesn’t often lie. Yet […]