Addend - Numbers to be added. In 1 + 2 = 3, 1 and 2 are the addends.
Addition - Put two or more numbers or objects together to get a new total
Ascending Order - See Ordering
Base - The lowest part or bottom part
Capacity – The amount of something you can hold, receive, or absorb. Usually it means volume such as milliliters or liters in metric.
Compare - Look at how objects or quantities are alike
Counter - Objects used for children to get a visual idea when counting, adding, and subtracting.
Data analysis - Extracting useful information and making meaningful conclusions from information collected.
Descending Order - See ordering
Diagrams – A plan, sketch, drawing, or outline designed to demonstrate or explain how something works or to clarify the relationship between the parts of a whole. In math, a diagram is a graphic representation of an algebraic or geometric relationship. It can be a chart or graph. Pictorial representations help students organize and piece together information that they have received.
Difference - The amount or quantity that remains after one number is subtracted from another. The amount by which one quantity is greater or lesser than another.
Dividend - A quantity (number) to be divided. In 12 divided by 4, 12 is the dividend.
Divisor - The quantity (number) by which one quantity (number), the dividend, is divided. Example: In 12 divided by 4, 4 is the divisor.
Equation - A math problem with two addends separated with left and right by a plus or minus and joined with equal signs. Example: 1 + 2 = 3 1 and 2 are addends and 3 is the sum.
Graphs - Use pictures, lines, or bars to show numberical information about a relationship between to sets
Geoboard – Mathematical manipulative used to explore basic concepts in geometry.
Height - The distance from the base to the top
Heuristics - The approaches students take to understand concepts and problems. Methods include diagrams, patterns, special case (look at a familiar case to generalize about other cases), graphs, trial and error, guess and check, use of previous methods and working backwards.
Integers - A member of a set of positive whole numbers (1, 2, 3,...) or negative whole numbers (-1, -2, -3,...) and zero.
Length - The distance measured from the beginning to the end. How long something is.
Number Sense - A understanding that allows students to approach concepts, ideas, and problems concerning numbers differently, according to their backgrounds, experiences, studies, and using different approaches.
One to One Correspondence – The ability to match each member of one set to the member of an equal set. For example, a child matches a sock to a shoe or two socks to two shoes. Building upon further math skills in counting, children learn to understand how to point to only one object when they are counting and to stop counting when all objects have been touched.
Ordering – Put numbers in order by a relationship. Common ordering patterns include ascending and descending. From lowest to highest is called ascending order. Ex. 3, 4, 9, 12. From highest to lowest is called descending order. Ex. 12, 9, 4, 3.
Patterns - A pattern is something that repeats itself. Patterns are everywhere. Patterns are in nature, in fabrics, in floor tiles, and even in tire tracks. There are patterns in numbers, words, colors, and rhythms. They show relationships between objects. Breaking down patterns and creating or identifying patterns help children begin to break down codes.
Pictograph – Picture representing objects, places, activities, events and concepts.
Probability - The likelihood that something will happen. Probability is used to draw conclusions about the likelihood of potential events. Example: If there is a 75% chance of rain, it will probably rain.
Quantity - The measurable, countable, or comparable property of something.
Sequencing – Determine the order of steps or pattterns. Organization of thoughts is connected to sequencing. Figuring out sequences is important for solving problems in everyday situations. Children learn to follow directions in a sequence.
Set - Collection of objects
Subtraction - Take away one number from another number to find the difference.
Sum - The result of adding two or more numbers. Example: In 1 + 2 = 3, 3 is the sum.
Skip Counting - Counting by numbers other than 1 such as 2's, 5's, 10's, etc. It is helpful for counting faster and learning multiplication.
Symmetry - Two halves of something make mirror images of each other when it is divided down the middle.
Tangrams – Ancient Chinese puzzle with movable pieces consisting of seven geometric shapes.
Total - The result of adding two or more numbers. It is also called the some. A whole quantity.
Variables - Having no fixed quantitative value. A quantity capable of assuming any of a set of values. A symbol representing such a quantity. In the expression a 2 + b 2 = c 2,for example, a, b, and c are variables.
Volume - The three dimensional space occupied by an object. Common three dimensional geographic shapes include cube, sphere, cylinder, and retangular prism.
Visual Discrimination- The ability to determine differences between objects and symbols by sight.
Width - The measure of how wide something is that is taken from angle to angle to get length.