Using a Comparison Mat CPM 2.1.5 & 2.1.6

Which is Greater?

Using Algebra tiles

Use legal moves to simpliy & compare.

• Removing Zero Pairs

• Crossing the dotted line & Change the sign

Use legal moves to simplify & compare

• Remove zero pairs

• Cross the line & change the sign.

• Remove more zero pairs.

Open Ended

Use your legal moves to simplify each expression. which is larger?

Multiple Select

Which legal move should you use first in order to simplify this expression?

• cross the line

• zero pairs

• none. I can't do this

• add everything together.

Multiple Choice

Determine the Perimeter of the figure.

• x² + 2

• x

• 4x + 4

• 2x + 4

Multiple Choice

Simplify each expression.

• 2

• 4

• 0

• -4

Multiple Choice

Simplify each expression.

• -y + 1

• -2y + 1

• y + 1

• 2y - 1

Multiple Choice

Simplify the expression: 4x + 3x

• 7x
• 7x²
• 12x
• 14x

Multiple Choice

Which is the STARTING expression shown on the Expression Mat?

• $3x-\left(x-3\right)$

• $3x-\left(-x+3\right)$

• $-3x-\left(-x+3\right)$

• $-3x-\left(x-3\right)$

Multiple Choice

Which is the STARTING expression shown on the Expression Mat?

•  $x-x$ 

•  $x-\left(-x\right)$ 

•  $-x-x$ 

•  $-x-\left(-x\right)$ 

Multiple Choice

Name the following algebra tiles

• y² + 2y + 3

• x² + 2x + 3

• x² + 2y + 3

• y² + 2x + 3

Multiple Choice

What term is represented by the algebra tiles?

• 2x
• 2
• 2x²
• -2x²

Multiple Choice

What is the Algebraic Expression from the mat shown above.

• $-6-2x$

• $-2x+6$

• I don't know what to do

• $6+2x$

Multiple Choice

What is the Algebraic Expression from the mat shown above.

• $3x+3-1=3x+2$

• $2x-1-x+3=\ x+2$

• I don't know what to do

• $2x-1+x-3=\ 3x-4$

Multiple Choice

Simplify the expression by combining like terms.

 $x^2+4+2x-4+1x=$  

•  $4x+4$  

•  $x^2+3x$  

•  $4x^2+0$  

•  $x^2+x$