Positive and Negative numbers are added using both the vertical and horizontal number lines; the rules of addition in algebra are introduced, as well, and students apply these rules to calculations. Properties (Closure for addition, commutative, associative, Identity, and inverse) are presented with a discussion as to how these properties relate to operations of addition.
Thanksgiving Turkey Properties of Addition Task Cards So many thanks to give to those around me this year. I wanted to share a little freebie with you all to review those properties of addition . These task cards are a simple tool to laminate and use in the classroom during small group math time. Students look at the problem on the turkey's sign and then either use a clothespin or any type of marker to find the problems that match the same inverse commutative or identity math problem. Head…
FANTASTIC book for teaching the inverse relationships between the numbers in a number sentence. Math Common Core, fact families, inverse relationships, commutative property of addition and subtraction Awesome educational website! http://www.helps4teachers.com
Introducing adding positive and negative integers, additive inverses, visualizing addition with a number line, and the commutative property of addition the <em>Math Club</em> parodies <i>Star Wars</i> and <i>Mean Girls</i>.
In this lesson, students use the inverse operation for multiplication and division in order to solve for linear equations. They also employ the reciprocal when addressing fractional coefficients in these equations. The properties of Equality are a portion of the lesson, , including the Addition Property of Equality, the Subtraction Property of Equality, the Multiplication Property of Equality, and the Division Property of Equality.