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

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