FACT FAMILIESMODULE 1

NUMBER SENSE AND QUANTITIES

Standards: MFANSQ1 (MGSE3.OA.6, MGSE4.OA.3)and MFANSQ4 (MGSE7.NS.1,2)

Warm Up

How many do you see? How do you see them?

How many chocolates are in this picture? How do you know?

Warm Up 1. 48 ÷ 6 = _____ 2. 56 ÷ 8 = _____

_____ × 8 = 56 _____ × 6 = 48

3. An industrial machine can make 35 crayons a day. If each box of crayons has 9 crayons in it, how many full boxes does the machine make a day?

4. Zoe bought 11 old CDs at a garage sale. If 6 of the CDs were scratched up, how many good

CDs did she buy?

Essential Questions

How are multiplication and division Related?

How can the same array represent both multiplication and division?

Vocabulary WordsArraysFact FamilyFactorsProductDividendDivisorQuotient

Vocabulary Array – a set of objects or numbers arranged

in order, often in rows or columns. Fact Family – consists of three numbers

related by addition and subtraction or by multiplication and division. The set of all four related facts is called the FACTS FAMILY.

Factors – a whole number that divides exactly into another or a whole number that multiplies with another to make a third.

Product – the result when two numbers are multiplied.

Quotient – the result of a division. Divisor – a number that will divide the

dividend exactly. Dividend – the number being divided.

Fact Family

EXAMPLES: ADDITION AND SUBTRACTION

2,4, and 6 2+4=6 4+2=6 6-4=2 6-2=4

3,5, and 8 3+5=8 5+3=8 8-5=3 8-3=5

EXAMPLES: MULTIPLICATION AND DIVISION

2, 4, and 8 2x4=8 4x2=8 8/4=2 8/2=4

3,5, and 15 3x5=15 5x3=15 15/3=5 15/5=3

Ticket Out of the Door

Given the picture of Swiss Miss, write the fact family and a story problem.