lesson plan 1
DESCRIPTION
Lesson Plan on Order of OperationsTRANSCRIPT
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Do Now Simplify the following expressions:
2 + 3 x 6 – 7(2 - 1)
8 x 2 + 9 ÷ 3 – 5²
21 – 14 ÷ 7 + 8 x 3
3(6 - 4) x 5 - 15 ÷ 3
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2 + 3 x 6 – 7(2 - 1)
8 x 2 + 9 ÷ 3 – 5²
21 – 14 ÷ 7 + 8 x 3
3(6 - 4) x 5 - 15 ÷ 3
13- 6
4325
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Family Dinner
“What are you getting, deary?” asked my Aunt Sally.
“I was thinking of getting a salad. What about you Aunty?” I asked.
“Oh I don’t know…there’s nothing that appeals to me. Why did we have to come here for dinner? There are so many nicer
places.”
I glanced over at my mother to see her shaking her head. Just then the waiter
came by and took our orders. When it was my Aunt’s turn to order, she made a fuss
about the choices.
I looked at the waiter apologetically and
said to him “Sir, Please Excuse My Dear Aunt Sally”
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The Order of The Order of OperationsOperations
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Parentheses
Exponents
Multiplication
Division
Addition
Subtraction
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Step 1Step 1
look for (parentheses) & simplify anything inside them
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multiply & divide
go from left to right
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add & subtract
go from left to right
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6÷2(1+2)What’s the correct
answer?
1 9
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6÷2(1+2) Parentheses
6÷2(3) Multiplication & Division
3(3) 9
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(6 + 5) × (3 × (7 + 3))
27 ÷ 3 (5 – 3)² 8 x 2 + 3 - 10 ÷ 5 + (6 – 3²) x 4
5² - 4 x 3 ÷ 12 (7 - 5)
21
3 4330
23
28
5
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(6 + 5) × (3 × (7 + 3))
11 × (3 × 10)
11 × 30
330
Parentheses
Parentheses
Multiply
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5² - 4 x 3 ÷ 12 (7 - 5)
5² - 4 x 3 ÷ 12 (2)
25 - 4 x 3 ÷ 12 (2)
25 - 12 ÷ 12 (2)
25 - 1(2)
25 - 2
23
Parentheses
Exponents
MultiplicationDivision
MultiplicationSubtraction
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27 ÷ 3 (5 – 3)²
27 ÷ 3 (2)²27 ÷ 3 (4)
9 (4)
28
Parentheses
Exponents
Division
Multiplication
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page 78: #1-15 odd #20-25 all