Equation Modeling

• term
• coefficient
• variable
• constant

Which equation matches the picture above? Key: Cup= C Snowflake =1

• c = 4

• 1 + 1 = 8

• 2 = 8

• 2C = 8

Which equations matches the picture? Key: Birdhouse=B Cardinal =1

• 3B + 1 = 6

• B + 3 = 6

• 1 + 3 = 6

• 6 = 3B + 1

Using the model, write the equation.

• 6 = 2+x;

• 6 = -2x;

• -6 = 2x;

• 6 = 2x;

Which equation matches the picture above?

• t = 3

• t + 4 = 7

• 1 + 4 = 7

• 4t + 1 = 7

Write the equation for the model.

• 10=2-x

• -10=-x+2

• -10=x-2

• -10=x+2

Write the equation for the model.

• -6x=-30

• 6x=-30

• 6=-30

• -6x=30

Solve for x:

• x = 20

• x = 7

• x = 10

• x = 3

What would be the first step to solving the equation being modeled? (green=x red = -1 blue = 1)

• Add 4 red tiles or -4 to both sides

• Add 4 blue tiles or 4 to both sides

• Add 10 red tiles or -10 to both sides

• Add 10 blue tiles or 10 to both sides

Solve the equation. (white is positive and the rectangle is the variable)

• x=10

• x=-4

• x=-10

• x=4