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Laabri

OAT Lesson 8: Different Ways to Solve Problems

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Last updated almost 3 years ago
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Develop Understanding

Today's Learning Goal: (G4, U6, L21)

  • Interpret products, quotients, and remainders in terms of a situation.

  • Solve multi-step problems in ways that make sense to students.

Today's Materials:

  • Laptop

  • Laptop charger

  • Pen/Pencil/Paper/Expo Marker (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: Which One Doesn’t Belong: Expressions with 5 or 90 - (5min)

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1.

Which One Doesn't Belong?

Launch: Different Ways to Solve Problems - (10 min)

I do (question 2)

We do (question 3)

You do (question 4 and 5)

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2.

An author took a 4-hour airplane flight for a work trip. The plane flew 478 miles each hour. How many miles did she travel?

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3.

A photographer took a 4-hour drive for his work trip. The car traveled 57 miles each hour. How many miles did he travel?

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4.

How many miles further did the author travel than the photographer?

Activity 1: Going on a Field Trip - (15 min)

(Groups of 2)

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Forty-five students are going on a field trip to a museum. Tickets for the museum are $18 each. Teachers have $900 to cover tickets for the trip. Will this be enough to cover tickets for every student?

If yes, will there be any leftover money and how much?

If no, how much more money is needed?

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6.

I showed y'all five strategies for answering the previous question. Analyze the strategies.

Which strategy is closest to yours? With a partner, take turns explaining how your strategy is close to the one you chose.

Discuss a different strategy with your partner. Try using this strategy to find the value of 14 x 35.

Activity 2: A Trip to the Movies

Movie tickets are $9 each. The theater sold the same number of tickets two days in a row. The theater made $3,132 from ticket sales on the first day.

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7.

How many tickets were sold on the first day?

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8.
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9.

A medium drink is $7 and small popcorn is $5. If each ticket holder purchases popcorn and a drink, how much money will the theater collect from the sales of popcorn and drink?

Lesson Synthesis: - (5 min)

Today we encountered problems with more than one step that can each be solved using different strategies. For instance, we saw at least five ways to think about the product of 45 and 18.

Some of the strategies involve using multiplication and division equations or multiplying and dividing mentally.

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10.

Look back at your work today. Can you find an example in which you solved a problem by using more than one step?

Cool Down: Big Weekend at the Movies - (5 min)

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11.

A one-room movie theater has 278 seats. Its goal is to sell 2,600 tickets every weekend. The theater plays a movie 5 times each Saturday and 4 times each Sunday.

Last weekend, the movie theater was completely full for every movie played on Saturday and Sunday. Did the movie theater meet its goal?

Closure Questions:

  • How did you feel about today's material?

  • Which five strategies you liked the most?

  • Anything in this lesson I can clarify better?