Analog Clocks – A clock that is usually a circle with the numbers 1 to 12 marked on it. This clock has two hands.
Area – Surface space that is measured in square units.
Between – A middle point among two places, times, or numbers.
Capacity – The amount a container can hold.
Celsius – The metric scale for measuring temperature. Scientist and people in most countries use thermometers labeled in this scale.
Centimeter – A unit of length and distance in the Metric System. It is about the width of a fingernail.
Circle – A set of points forming a closed, curved figure in a plane that has no sides.
Cone – A geometric figure with one circular base, one curved surface, and one vertex.
Congruent – Having the same size and shape.
Cube – A geometric figure with six square faces all equal in size.
Cup – A customary unit for measuring capacity. It is equal to the following: 8 fluid ounces, ½ of a pint, ¼ of a quart. It takes 16 of these to make a gallon.
Curved Surface – A surface of a geometric figure that is not in a flat plane.
Cylinder – A geometric solid that has both a circular base and a circular top.
Day – A unit of time that is equal to 24 hours.
Decompose – Taking numbers apart.
Decrease – Get smaller in size or number.
Degrees – A unit for measuring angles or temperature.
Denominator – The part of a fraction, below the line of the fraction, that stands for the number of equal parts of a whole or group is divided into.
Difference – The amount that remains after one number has been subtracted from another.
Digit – The ten symbols, 0, 1, 2, 3, 4, 5, 6, 7, 8, or 9.
Digital Clock – A clock that has no hands. It gives the time in numbers, and the hours and minutes are separated by a colon.
Dime – A coin used in the United States worth 10 cents, or 10 pennies.
Divide – Sharing or grouping a number into equal parts.
Dollar – Paper money used in the United States. It is equal to 100 pennies, or 10 dimes.
Edge – The line segment where two faces of a geometric figure meet.
Equal – Two amounts that have the same value.
Equally Likely As – A phrase used to describe the chance that an event will occur is the same as another event.
Equation – A statement that two amounts have equal value or measure.
Estimate – To make an approximate or rough calculation, often based on rounding.
Even Number – Any number that can be evenly divided by 2. These are numbers that have 0, 2, 4, 6, or 8 in the ones place value.
Expanded Form – A way of writing numbers to show place value, or the value of each digit.
Face – The flat surface of a geometric figure.
Fact Family – A group of related facts based on one fact.
Fahrenheit – The customary scale for measuring temperature. Most people in the United States use thermometers labeled in this scale.
Feet – The plural of foot, meaning more than one foot.
Fewer Than – A smaller amount, number, or quantity.
Foot – A customary unit for measuring length and distance. It is equal to both 12 inches and it takes 3 of these to make a yard. It is about the length of a sheet of notebook paper.
Fraction – A number that stands for part of a whole or part of a group.
Gallon – A customary unit for measuring capacity. It is equal to the following: 128 fluid ounces, 16 cups, 8 pints, and 4 quarts.
Geometric Figure – A figure that is three-dimensional solid that has length, width, and height.
Gram – A basic metric unit for measuring weight.
Graph - A drawing or picture that shows data in an organized way.
Greater Than – One number has a larger value than another number. The symbol for greater than is:
Height – The measurement from top to bottom.
Hexagon – A polygon with six sides.
Horizontal – Parallel to the horizon, going east to west, or left to right.
Hour - A unit of time that is equal to 60 minutes.
Hundred Thousands – 100,000; one hundred groups of one thousand.
Hundreds – 100; ten groups of ten.
Inch – A customary unit for measuring length and distance. It takes 12 of these to equal one foot and 36 of these to equal one yard. It is about the length of a small paper clip.
Increase – Get larger in size or number.
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