Hands on Equations Review 1-7

In algebra a variable represents an unknown number.  Which of the following represents the variable in Hands On Equations?

• the balance
• the blue pawn
• the red cubes
• the yellow mat

The  X in the equation
2X + 3 =  X + 9 represents...

• a number cube
• nothing
• a blue pawn
• =

The scale represents a(n) _____  equation.

• Unequal
• Positive
• Negative
• Balanced

In all Hands On Equations, both sides of the balance or equal sign need to be _________.

• unbalanced
• equal
• unequal
• different

How should you remove pawns and/or cubes from the balance scale?

• Remove the same amount or values from both sides at the same time using both hands.
• Take off whatever you need.
• Remove whatever you need to make both sides look identical.
• You can't remove anything.

How do you solve an equation with parenthesis using Hands on Equations?

• Set up what is inside the parenthesis. Then repeat whatever is inside the parenthesis stacking on top of the original.  You do that the number of times shown on the outside the parenthesis.
• ALWAYS double what is inside the parenthesis.
• Ignore the parenthesis.
• Double everything on both sides of the equation.

What do you need to make sure that you do before you check each equation?

• Set up the original equation.
• Guess and check.
• Change all of the blue pawns to white pawns.
• Make the check equal to the value of x.

When writing rather than using the Hands on Equations Kit what do you use to represent the blue pawn?

• Colored in triangle
• Triangle
• Square
• Square with a number in it

When writing equations what do you do to show that you are removing a pawn?

• Drawn an arrow above it.
• Erase it.
• Mark it out.
• You can't remove pawns.

When writing equations what do you do to show that you are removing the same value from both sides?

• Put a slash through the least value and then on the other side put a slash through the value and draw another cube above it and write int he new value.
• Erase the values.
• You can't remove any values.
• Mark them out and don't replace anything.