Texas Instruments - Middle Grades

Integers! It All Adds Up! Added on 9/14/2009	Downloads: TI-73 PDF file TI-SmartView Scripts TI-Navigator files
In this activity, students will use the Number Line application to investigate adding positive and negative integers. For the first problem, students will add only positive integers. They are introduced to the concept of "number rays" or vectors to represent the operation of addition.
In the second problem students will add only negative integers. They will also investigate adding a negative integer and a positive integer. Lastly, students see how opposite integers always have a sum of 0.
After determining patterns for the addition of integers, students are encouraged to develop mental arithmetic strategies and practice using them with the additional problems given on the worksheet.

Integers! It All Adds Up!

Added on 9/14/2009

Downloads:
TI-73 PDF file
TI-SmartView Scripts
TI-Navigator files

In this activity, students will use the Number Line application to investigate adding positive and negative integers. For the first problem, students will add only positive integers. They are introduced to the concept of "number rays" or vectors to represent the operation of addition.

In the second problem students will add only negative integers. They will also investigate adding a negative integer and a positive integer. Lastly, students see how opposite integers always have a sum of 0.

After determining patterns for the addition of integers, students are encouraged to develop mental arithmetic strategies and practice using them with the additional problems given on the worksheet.

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