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PERCENTAGE INCREASE AND DECREASE

PERCENTAGE INCREASE AND DECREASE. Week 13. DO NOW (3 mins ) PKB (Prior Knowledge Box ). STANDARD- 7N.S. 1.6 Calculate the percentage of increases and decreases of a quantity. OBJECTIVE Huskies will be able to calculate the percentage of ___________ and ____________ of a quantity.

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PERCENTAGE INCREASE AND DECREASE

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  1. PERCENTAGE INCREASE AND DECREASE Week 13

  2. DO NOW (3 mins)PKB (Prior Knowledge Box)

  3. STANDARD- 7N.S. 1.6Calculate the percentage of increases and decreases of a quantity.

  4. OBJECTIVEHuskies will be able to calculate the percentage of ___________ and ____________ of a quantity

  5. If you go to the movies for a matinee its $9.00 for students. If you go at 10pm its $12.00, How much more do you pay at night? Why? Intro

  6. Black Friday Remember Black Friday from last year. Stores will drop the prices on Friday (decrease) and then raise them back on Monday (increase). Intro continued…

  7. Steps 1)larger # and the smaller #. 2) #(from step 1), by the __________ #. 3) decimal into a __________.

  8. Steps

  9. Example#1 1) What is the percent decrease on a cellphone that is marked down from $200 to $120?

  10. Example#1 1) What is the percent decrease on a cellphone that is marked down from $200 to $120? • Step 1 200 • -120 • 80 • Step 2 80 ÷200= .40 • Step 3 40%

  11. Example #2 2) The steak dinner at Denny’s is $14.00 for lunch, it becomes $20.00 at dinner. Calculate the percentage increase.

  12. Example#3 3) What is the percent decrease on a DVD recorder that is marked down from $280 to $220?

  13. Prior Knowledge Box (PKB)

  14. Station Overview (25 mins per station) • Collaborative- (P) Percentage worksheet (Bring up for a check after question #1). • Direct- Real- world practice with Ms. Ahumibe.

  15. So what does it look like on the CAHSEE?

  16. Practice Problems 1. Simon Tech- 134 students to 130. 2. Luggage- $200 to $320. 3. Food 4 Less apples $2 a pound to $3 a pound.

  17. Exit Slip- Percentage Increase and Decrease • Name • Date • Period

  18. Agenda Homework-5 word problems Bring a white board marker (DUE: P.1,3,5- Mondays and Thursday. P.2,4,6- Tuesdays and Fridays)

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