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

• Have each group of students use the Four-Pan Algebra Balance tomake a model of the following equations, while noticing whichway the pointer is pointing:• -3 < 4• 3 > -2• -3 < 6• Write -2 ___ -1 on the board, have the students guess which waythe pointer is pointing to determine what inequality sign to use.Then have them try it, in their groups, to see if they were correct.• Have each group of students use the Four-Pan Algebra Balance tomake a model of the following equations, while noticing whichway the pointer is pointing:• -2 > -3• -1 > -4• -6 < -13. In groups have the students find ten different number sentences involvinginequalities.• Group member 1: Place chips in the left side of the Four-PanAlgebra, in one tray at a time.• Group member 2: Place chips in the right side of the Four-PanAlgebra, in one tray at a time.• Group member 3: Hold up the corresponding index card with ,or = written on it.• Group member 4: Record the number sentences created.• Repeat 10 times. For 10 different number sentences.Closure:• Discuss as a class, how the Four Pan Algebra Balance helps us determine whichnumber is greater or smaller when given 2 numbers. Also, discuss how we can tellwhich number is greater or smaller without using the balance.Homework:• Unit one practice from pg 49 in The Four-Pan Algebra BalanceStudent Handouts:• Unit one practice from pg 49 in The Four-Pan Algebra Balance8