3.2a Modeling Addition

Learning Target:

• I can add positive integers by counting up and negative integers by counting down using a number line.

CCSS:

• 7.NS.1 Apply and extend previous understandings of addition and subtraction to add and subtract rational numbers; represent addition and subtraction on a horizontal or vertical number line diagram.
• 7.NS.1.D Apply properties of operations as strategies to add and subtract rational numbers.
• 7. NS.3 Solve real-world and mathematical problems involving the four operations with rational numbers

Supplemental Videos:

Classwork:

Online Practice:

• http://www.mathplayground.com/ASB_OrbitIntegers.html
• http://www.mathplayground.com/ASB_SpiderMatchIntegers.html
• http://www.mathgoodies.com/games/integer_game/
• http://www.sheppardsoftware.com/mathgames/integers/FS_Integer_addition.htm
• http://www.mathnook.com/math/skill/integergames.php

• Adding and Subtracting Rational Numbers Online Practice

http://www.ixl.com/math/grade-7/add-and-subtract-rational-numbers - you are limited to a certain number of free practice problems per day. When you have reached the limit, move on to another website - DO NOT sign up for anything.

http://www.softschools.com/quizzes/math/adding_and_subtracting_rational_numbers/quiz3284.html

Graded Assignment: