Problem Solving Short Response 2

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Problem Solving Short Response 2

• Fuller Computer Lab

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This activity addresses the following Illinois
State Goal.

• 6.B.1 6.B.3a Solve practical computation
  problems involving whole numbers, integers and
  rational numbers.

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Rubric
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Lawnmower

• During the summer holidays, your brother earns
  extra money mowing lawns. He mows 6 lawns an hour
  and has 21 lawns to mow. How long will ittake
  him?
• What do we know?
• He mows 6 lawns in an hour.
• There are 21 lawns.
• What do we need to find?
• How long will it take to mow the 21 lawns?

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How do we do this Problem?

• During the summer holidays, your brother earns
  extra money mowing lawns. He mows 6 lawns an hour
  and has 21 lawns to mow. How long will ittake
  him?
• We know he does 6 in one hour, so..
• If we can find out how many 6s there are, we
  will know how many hours there will be.

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How do we do this Problem?

• During the summer holidays, your brother earns
  extra money mowing lawns. He mows 6 lawns an hour
  and has 21 lawns to mow. How long will ittake
  him?
• To find how many 6s there are, we can divide 21
  by 6.

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Twin sisters are expensive.

• You bought your twin sister Molli 3 gifts
  costing24 each, and your other twin sister Mary
  5 giftsat 18 each. How much money did you spend
  onMolli and Mary?
• What do we know?
• Molli got 3 gifts that cost 24 each.
• Mary got 5 gifts that cost 18 each.
• What do we need to find?
• How much money did you spend in all?

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? What do we Do?

• You bought your twin sister Molli 3 gifts costing
  24 each and your other twin sister Mary 5 gifts
  at 18 each. How much money did you spend
  onMolli and Mary?
• The clueHow much in all When we read this, we
  know we usually add or multiply.
• This is a two step problem, and we do both
  multiplication and addition.

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? What do we Do?

• You bought your twin sister Molli 3 gifts costing
  24 each and your other twin sister Mary 5 gifts
  at 18 each. How much money did you spend on
  Molli and Mary?
• In this problem we multiply and add
• We multiply to find how much for each twin.
• Then we add the totals for the two twins to get
  the grand total.

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The Mean Problem.

• The mean average of the following 4 math marks
  will become your report card mark 97, 78, 84 and
  86. What will your report card mark be?
• What do we know?
• The grades are 97. 78, 84, 86.
• The mean of these will be the report card grade.
• What do we need to find?
• What will be the report card grade?

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The Mean Problem.

• The mean average of the following 4 math marks
  will become your report card mark 97, 78, 84 and
  86. What will your report card mark be?
• We must calculate the mean, so add all four
  marks, and divide the answer by four.

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REMEMBER THE RUBRIC
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Blog

• You can get 2 points per problem.
• So that will be a possible 6 points for the three
  problems.
• Plus, you can get 2 extra credit points for
  working well with a partner.

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Blog

• This problem is on the Computer Lab BLOG.
• We are going to write a response in the comment
  part of the BLOG.