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Help your class discover the commutative property of addition with this exploration of the addition table. By folding and coloring the table, a symmetry is found that directs students to an understanding of this crucial mathematical...

Hop your way through a mathematical equation with your first grade class as they learn the idea of moving up and down the number line. Adding and subtracting like little frogs is an engaging and clever way to teach/reinforce this concept.

Fact families are an excellent way to connect math operations for beginners to addition and subtraction. Use the examples here to review this concept before scholars try these on their own. For each, they examine two related number...

Bridge the gap between the term "take away" and the actual subtraction symbol using these illustrated practice problems. For each, youngsters see the number sentence in three ways: images of birds on twigs, written out in word form, and...

What a brilliant way to present this topic! This presentation uses counters and an interactive techniques to show young mathematicians how to add numbers by creating groups of ten. The graphics make it easy to understand this concept....

Some times simple is as good as gold. Early learners are introduced to the basic mathmatical symbols used to represent addition, subtraction, multiplication, division, and equals; each slide contains one large image of each symbol. 

Adding double-digit numbers can seem difficult for some students. But, this Khan Academy video makes this process clear in a developmentally sound way. Students watch as 'Sal' adds the number 46 to 43. He references each number by its...

An extensive collection of teacher resources to help in teaching and reviewing the concepts of basic addition and subtraction. There are many worksheets, activities, PowerPoint presentations, smartboard activities, Word, Excel, and pdf...

Explore place value and regrouping with your class. They develop awareness of several ancient number systems and how they differ from the base ten system commonly used today. They play "Chip Trading" with partners to practice addition...