Students in some local elementary schools are learning a completely different way of doing multiplication. It’s a technique that many parents can’t understand. It’s called lattice multiplication. The ...

The array method only works when one of the numbers being multiplied is bigger than 10. Look at both numbers and, where necessary, split into tens and ones. Draw out a rectangle. Label the top of the ...

Students learn how to write an equation to find the area of rectangles. In this lesson, students will learn how to write an equation to find the area of rectangles by thinking of them as an array. / ...

If you show someone a mouse and a cat and ask which is smaller, they'll quickly reply, "the mouse." Ask which is bigger, and it takes most people slightly longer to respond. Conversely, if the two ...