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Mrs. Toothman’s 2nd Graders Math Vocabulary

Angle :

An Angle is made by two lines that extend from the same point. Angle

Clock :

If you want to know what time it is, look at a clock. - Katelyn Clock

Cylinder :

A cylinder is a figure with a long round body. -Luke Cylinder

Denominator :

The denominator is the bottom number in a fraction. -Carson Denominator

Dollar :

A dollar is worth 100 cents.
-Payton Dollar

Equation :

An equation is a mathematical statement that
contains an equal sign. -Kali Equation

Even Number :

An even number is divisible by two. -Alyssa Even Number

Fraction :

A fraction is a part of a whole, like a half, a third, or a quarter. Fraction

Half :

When something is divided into two equal parts each of these two parts is half of the original object. - Payton Half

Hour :

There are 24 hours in a day.
-Hailey Hour

Hundredth :

A hundredth I one part in a hundred equal parts.
-Carson Hundredth

Line Segment :

A line segment is a portion of line with end points . -Haley Line Segment

Minus :

The mathematical symbol minus means to subtract. Four minus three is written: 4-3=1.
-Marcus Minus

Minute hand :

A minute hand on a clock tells you how many minutes past the hour it is. -Oliver Minute hand

Multiplication :

The basic idea of multiplication is repeated addition. -Jack Multiplication

Number Line :

A line with numbers placed in their correct position. -Anjali Number Line

Numerator :

The numerator is the top number in a fraction.
-Marcus Numerator

Odd Number :

An odd number can’t be divided evenly by two.
-Sarah Odd Number

Ordinal Number :

An ordinal number shows the position in a series of numbers. First, second and third are ordinal numbers. -Hailey Ordinal Number

Pattern :

A pattern is something that is repeated.
-Oliver Pattern

Penny :

A penny is a coin worth one cent.
-Matthew Penny

Plus :

A plus sign means addition.
-Luis Plus

Regular Polygon :

A regular polygon has sides that are all the same length. -Noah Regular Polygon

Right Angle :

A right angle looks like the corner or a square it extends ninety degrees -Emely Right Angle

Ruler :

A ruler is a straight piece of material that is used for measuring distances or drawing straight lines. -Alyssa Ruler

Skip Counting :

Skip counting is counting while skipping some numbers, like 2,4,6,8… -Katelyn Skip Counting

Sphere :

A sphere is a ball shaped object.
-Anjali Sphere

Square :

A square has four equally long sides which are at right angles to each other. -Alyssa Square

Subtraction :

Subtraction is an operation in which one number is taken away from another number. -Katie Subtraction

Symmetry :

Symmetry is when one shape becomes exactly like another if you flip, slide or turn it. -Molly Symmetry

Tally Marks :

Tally marks are a quick way of keeping track of numbers in groups of five. -Molly Tally Marks

Time :

Time is measured in seconds, minutes, hours, days, weeks, months, and years.
-Emely Time

Triangle :

A triangle is a geometric figure that has three sides. -Haley Triangle

Resources :

Resources We found the definitions at:http://www.enchantedlearning.com/Dictionary.html
We found the pictures at:
http://www.mathsisfun.com/definitions/index.html

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