Post on 24-Jan-2016
description
transcript
Find the product.
1) 3 x 4 x 52) 8 x 4 x 3 3) 2 x 3 x 94) 2 x 6 x 45) 8 x 2 x 46) 7 x 5 x2
5-Minute Check5-Minute Check
Factors and MultiplesFactors and Multiples
ObjectiveObjectiveBy 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).
IntroduceIntroduceLooking 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?
TeachTeachUsing 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 3Do 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.
ExampleExample 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?
ExampleExampleHow many ways can Mrs. Sharpe arrange the
desks in her class?Think of number pairs that result in a product
of 24.1 x 24 = 24
2 x 12 = 24
3 x 8 = 24
4 x 6 = 24
Let’s hear from Mrs. Let’s hear from Mrs. Verughese!!Verughese!!
Mrs. Verughese
Let’s watch that concept in motion!!
CHANCE TICKETSCHANCE TICKETSFind all of the
factors of each number.
6101236
Identify the first five multiples for each number.
24912
AssignmentAssignment
Page 206- #’s 11 – 26