What Are You Talking About?

Addend: one of two or more numbers that are added. For example in 6 + 4 = 10 the addends are 6 and 4.

Addition fact: two numbers added together to get a sum.

P = penny
N = nickel
D = dime
Q = quarter

Doubles fact: two of the same number added together to get a sum. 4+4=8

Frames and Arrows: These are diagrams used to represent lists of numbers based on a rule. The frames are where the numbers are written. The arrows represent the rule for moving from one frame to the next.

Home link: In Everyday Mathematics, a suggested follow-up or enrichment activity to be done at home.

Long: In Everyday Mathematics, the term for the base-10 block consisting of 10 centimeter cubes.

Measurement unit: The reference unit used when measuring (inch, foot, centimeter, grams, liters, degrees).

Number sequence: A list of numbers following a rule.
1,2,3,4,5,...
1,4,7,10,...
1,2,1,2,1,2,....
1,3,5,7,9,....

Number story: A story that contains a problem that can be solved using a basic arithmetic operation.

There were 4 whales swimming together.
One whale left.
How many whales were left swimming together?

Ordinal number: A number used to express position or order in a series, such as first, third and tenth.

Pattern: A design or plan by which objects can be arranged so that the next object is predictable.

Row: A horizontal arrangement of objects or numbers.

Set: A collection or group of objects, numbers or other items.

Sum: The result of adding two or more numbers. For example, in 6+4=10 the sum is 10.

Vertical: Upright. Up & down arrangement of objects or numbers.

“What’s My Rule?”: In Everyday Mathematics, a routine that involves a set of number pairs in which the numbers in each pair are related to each other according to the same rule.