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Biblioteka

RCN Final Lesson 29 - Integer Wrap-Up

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Posljednje ažuriranje over 3 years ago
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Activity 1: Assessment #1 Adding/Subtracting (10 min)

Activity 2: Assessment #2 Multiplying and Dividing (10 min)

Cool Down: Integer Rules! (5 min)

Develop Understanding

Today's Learning Goal: (G7, U5, L4)

  • Solves real-world problems involving the four operations with integers and other rational numbers.

Today's Materials:

  • Laptop

  • Laptop charger

  • Pen/Pencil/Paper (optional)

Please complete the Jump Start (activator). You have 5 minutes before we review. This is independent it should be silent.

Reminders:

1. Ready for class

2. No cellphones

3. Volume must be low.

4. Read and follow all directions

5.) Take your bag off and immediately begin the Activator.

Jump Start: Four Operations - (5 min)

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Launch: Mini Lesson (10 min)

I'll Try

We'll Try

You Try

Find the Values of the expressions below:

Sign Rules for Multiplication and Division of integers:

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Sign rules for Addition and Subtraction of integers:

Same signs add and different signs subtract.

  • If the numbers have the same sign keep the sign. (Ex.) -3 + (-7) = -10 ==> - 3 - 7 = -10

  • If the numbers have different signs keep the sign of the larger. (Ex.) 4 + (-2) = 2 ==> 4 - 2 = 2

  • When subtracting integers keep the first number, change the operation into addition and then change the second number to its opposite. (Ex.) -3 - (-7) ==> -3 + 7 = 4 (Ex.) -4 - 2 ==> -4 + (-2) use the 1st rule for addition.

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