Find the product. 1) 3 x 4 x 5 2) 8 x 4 x 3 3) 2 x 3 x 9 4) 2 x 6 x 4 5) 8 x 2 x 4 6) 7 x 5 x2 5-Minute Check

Factors and Multiples

Objective By the end of the lesson, you will be able to find factors and multiples of whole numbers. Standard 4NS1.1 – Understand that many whole numbers break down in different ways (e.g., 12 = 4 x 3 = 2 x 6 = 2 x 2 x 3).

Introduce Looking at the multiplication table, look at the row that starts with 4 and the column that has 4 at the top. Why is skip counting by 4’s on this table easy? When you skip count on this table, you are saying multiples of the number. A multiple is the product of that number and any whole number. What are the first five multiples of 4?

Teach Using the graph paper on your desk, try to draw as many arrays you can that shows 12 squares. (be ready to share). What arrays did you draw? 1 x 12, 2 x 6, 3 x 4, 12 x 1, 6 x 2, 4 x 3 Do all numbers have factors? Can you think of some examples of numbers that only have two factors? List the first 5 multiples of 7 on your whiteboards.

Example Mrs. Sharpe is arranging desks in her classroom. There are 24 desks. How many ways can she arrange the desks so that the number of desks in each row is the same?

Example How many ways can Mrs. Sharpe arrange the desks in her class? Think of number pairs that result in a product of x 24 = 24 2 x 12 = 24 3 x 8 = 24 4 x 6 = 24

Let’s hear from Mrs. Verughese!! Mrs. Verughese Let’s watch that concept in motion!!

CHANCE TICKETS Find all of the factors of each number Identify the first five multiples for each number

Assignment Page 206- #’s 11 – 26