Adding and Subtracting Integers Unit Grade 7 Math 5 Days Tools ...

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$By: Melissa Hanel Math B/Grade 11 5 Day Unit Plan Technologies ...$

the class what part of their mat represents the equal sign (thedividing line on the mat represents the equal sign). Make sure youalso draw this on the overhead, so students see what they should bedrawing on their worksheet.6. Have the students answer questions 2-4 on their worksheet, using thealgebra tiles. Make sure that students are also drawing what they aredoing using red and green crayons. (See answer key for what studentshould be drawing).7. Have the students create a rule for adding two positive integers together.Have the students pair share their results, than record them on chart paper,with the person that they pair-shared with. (See answer key to see whatthe rules are).8. I will model how to do question #5 from the worksheet, using over headalgebra tiles.• I will place 2 red integers on the left side of my mat (grouped) andthen add 5 more red integers to that side (grouped). I will now dothe same for the left side of my mat, but this time I will push all theintegers together. Now count how many integers we have on theright side of the mat., we have 7 red ones. Therefore -2 + -5 = -79. Have the students answer questions 6-8 on their worksheet, using thealgebra tiles. Make sure that students are also drawing what they aredoing using red and green crayons.10. Have the students write a rule for adding two negative integers together.Have the students pair share their results, then with their partner recordthem on chart paper.11. I will model how to do question #9 from the worksheet, using over headalgebra tiles. I will place 2 red integers on the left side of the mat and Iwill add 4 green integers to the left side of the mat. On the right side, Iwill do the same, but I will push the integers together. This time we cannot count the integers because they are not alike, some are red and someare green. In order to get them all the same I will need to find and removezero pairs from the right side. I will continue to do this until no more zeropairs exist (Remember zero pairs are one green integer and one redinteger). I will have 2 green integers remaining on the right making -2 + 4= 2.12. Have the students answer questions 10-12 on their worksheet, using thealgebra tiles. Make sure that students are also drawing what they aredoing using red and green crayons.13. Have the students write a rule for adding a negative integer and a positiveinteger together. Have the students pair share their results, then recordtheir rules on chart paper.Closure:12
• We will discuss the importance of using models to learn new things. We willdiscuss the importance of learning the rules from working with the models. (Inreal life and on tests we can not use balances of Algebra Tiles to add integers).Homework:• Have students write a paragraph on which model they like better, the Four-PanAlgebra balance or the Algebra Tiles. Which made adding integers clearer?Which helped them see the rules easier? Or were they both the same and why.Or did neither help them see the rules and why.Student Handouts:• Adding and Integers using Algebra Tiles—worksheet13
Page 1 and 2: Adding and Subtracting Integers Uni
Page 3 and 4: PI 3E—Demonstrate an understandin
Page 5 and 6: MaterialsAlgebra Tiles—class setA
Page 7 and 8: Lesson: Day One-Comparing integersT
Page 9 and 10: Lesson: Day Two- Using the Four-Pan
Page 11: Lesson: Day Three-Adding integers u
Page 15 and 16: Name _________KEY__________________
Page 17 and 18: 6. Have the students write a rule f
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Page 21 and 22: Name_____Key_______________________
Page 23: Lesson: Students will practice addi

Adding and Subtracting Integers Unit Grade 7 Math 5 Days Tools ...

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