Unit 1, Lesson 4 Line Math Puzzles

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Unit 1, Lesson 4 Line Math Puzzles
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Goals

• Develop mathematical reasoning
• Practice addition facts

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What We Will Learn Today

• We are going to learn to solve line math puzzles
  and then you will create your own.
• We will practice our addition by making groups of
  ten.

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Teaching the Activity

• This line math puzzle on URG pg. 51 is made of
  boxes connected with lines.
• What is the sum of each line?

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Teaching the Activity

• What pattern do you see?
• What number is in all three sums?
• What other patterns do you see?

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Line math puzzles

• Each line of boxes connected by a dotted line in
  a line math puzzle has the same sum
• Arrange the numbers 1, 2, 3, 4, and 5 on the top
  puzzle on Line Math Puzzles 1 activity page 15
  so that each line totals 9.
• Write the two number sentences on the side of the
  page next to the puzzles

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Line Math Puzzles

• Each line of boxes connected by a dotted line in
  a line math puzzle has the same sum
• Arrange the numbers 5, 6, 7, 8 and 9 on the
  bottom puzzle on Line Math Puzzles 1 activity
  page 15 so that each line totals 21.
• Write the two number sentences on the side of the
  page next to the puzzles.

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Line Math Puzzles

• When you complete DAB Pg. 15, you may do the
  puzzles on DAB Pg. 17.
• Follow the directions for the numbers to use and
  the sum for each line.

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What We Learned Today

• We learn how to solve line math puzzles.
• We practiced our addition by making groups of ten.

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Extension

• Make your own design for the line and box
  structures of the puzzle
• Create line math puzzles based on a new rule
  Every line has a different sum
• Use 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20 to
  do a line math puzzle