Number Line
Unit Vocabulary

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Number
A number that indicates how many or how much.
Sum
The total from the addition of two or more numbers, amounts, or items.
Number line
A line of numbers marked at certain intervals or equal spaces with numbers placed in a particular order. It is a useful tool for adding and subtracting numbers.
Plus
A symbol that shows addition; combine; put together two or more quantities.
To combine; put together two or more quantities.
Equation
A number sentence with an equal sign. The amount on one side of the equal sign has the same value as the amount on the other side.
Tool
Something that helps you accomplish a task.
Object
A material thing that can be seen and touched.
Quantity
How much there is or how many there are of something.

## Encouraging Vocabulary Usage

General notes on encouraging vocabulary usage with young children:

• The goal is to introduce math vocabulary to young children as they explore math ideas with concrete objects, not to make them memorize vocabulary.
• Introduce math vocabulary as naturally as you would introduce the names of different foods, animals or toys.
• The more children hear math words used with activities, the more they will begin to use them correctly. Reinforce math vocabulary with everyday things. Whether setting the table, playing with toys, displaying collections on the science table, or cleaning up after dinner, there will be opportunities to reinforce the math words to your students.

Tips for Encouraging Vocabulary Usage