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IM 7.6.7 Lesson: Reasoning about Solving Equations (Part 1)

In this diagram, all the triangles weigh the same and all the squares weigh the same.

For this diagram, come up with one thing that must be true

For the same diagram, come up with one thing that could be true

For the same diagram, come up with one thing that cannot possibly be true

In this diagram, all the triangles weigh the same and all the squares weigh the same.

For this diagram, come up with one thing that must be true

For the same diagram, come up with one thing that could be true

For the same diagram, come up with one thing that cannot possibly be true

On each balanced hanger, figures with the same letter have the same weight.

Match one hanger to the equation.

Marca todas las que correspondan
  • A
  • B
  • C
  • D
Revisa tu respuesta (3)

Complete the equation by writing , , or  in the empty box. Find the solution to the equation. Use the hanger to explain what the solution means.

Match one hanger to the equation. 3 __ + 2 = 3

Marca todas las que correspondan
  • A
  • B
  • C
  • D
Revisa tu respuesta (3)

Complete the equation by writing , , or  in the empty box. Find the solution to the equation. Use the hanger to explain what the solution means.

Match one hanger to the equation. 6 = 2 __ + 3

Marca todas las que correspondan
  • A
  • B
  • C
  • D
Revisa tu respuesta (3)

Complete the equation by writing , , or  in the empty box. Find the solution to the equation. Use the hanger to explain what the solution means.

Match one hanger to the equation. 7 = 3 __ + 1

Marca todas las que correspondan
  • A
  • B
  • C
  • D
Revisa tu respuesta (3)

Complete the equation by writing , , or  in the empty box. Find the solution to the equation. Use the hanger to explain what the solution means.

Here is a balanced hanger where each piece is labeled with its weight.

Write an equation.

Explain how to figure out the weight of a piece labeled with a letter by reasoning about the diagram.

Explain how to figure out the weight of a piece labeled with a letter by reasoning about the equation.

Here is a balanced hanger where each piece is labeled with its weight.

Write an equation.

Explain how to figure out the weight of a piece labeled with a letter by reasoning about the diagram.

Explain how to figure out the weight of a piece labeled with a letter by reasoning about the equation.

Here is a balanced hanger where each piece is labeled with its weight.

Write an equation.

Explain how to figure out the weight of a piece labeled with a letter by reasoning about the diagram.

Explain how to figure out the weight of a piece labeled with a letter by reasoning about the equation.

Here is a balanced hanger where each piece is labeled with its weight.

Write an equation.

Explain how to figure out the weight of a piece labeled with a letter by reasoning about the diagram.

Explain how to figure out the weight of a piece labeled with a letter by reasoning about the equation.