It is a common trend in the sports world for any and all personalities therein to adopt various buzz words and jargon. Words or phrases that are either rooted in obscurity or just tossed out to ...

You can add or subtract numbers in lots of different ways. You can use number lines, number bonds, fact families, 10 squares and counters, or even just writing the numbers down. Sometimes it is faster ...

Match fun story problems with the correct addition or subtraction expression. Join Mrs. Gray for number talk with the Counting Buddy Junior. Then get ready to match fun story problems with the correct ...

In early 15th century Europe, the letters P and M were generally used for addition and subtraction. Why is the plus sign used for addition and the minus sign for subtraction? In early 15th century ...

The present paper describes the success, the methods (mental, informal written, standard algorithm) and the strategies of informal written arithmetic to be observed when 300 elementary students worked ...

There's a whole world under the surface and only Ron has any idea about it. And sometimes the two worlds collide, and sometimes they don't. Ron holds them at arm's length from each other. Watch every ...