1. Least Common Multiple
Math Textbook Section 1.3
Pages

2. Least Common Multiple (LCM)
LCM by Anywhere Math (11:56 min) Methods: Listing, Prime Factorization, LCM of 3 Numbers
2. LCM for Beginners (3:47 min)
3. LCM for Big Numbers (4:30 min)
4. LCM with Ladder Method (4:46 min)
5. LCM with Khan Academy (5:23 min)
6. Mental Math Trick for LCM (8:39 min)
* Challenge!
View each video link as a review of the lesson. The #1 and #4 links with the smiley face are the ones shown in class.

3. Find the LCM of the numbers using the listing method.
On notebook paper write the title “LCM Practice” and work these problems as we do them together in class. Keep these practice problems in your binder as a resource to remember HOW to use each LCM method. See divider tab #1 “Math Practice and Homework”
Find the LCM of the numbers using the listing method.
, , ,10
Find the LCM of the numbers using prime factorization.
, , ,90
Find the LCM of the numbers using ladder method.
, , 12
Find the LCM of the three numbers.
, 5, , 10, 12
BONUS: Write a set of numbers whose least common multiple is 100.
PRACTICE PROBLEMS

4. Math Journal Activity learned today: #1 Listing #2 Prime Factorization
1. On notebook paper copy the THREE methods of finding LCM
learned today:
#1 Listing
#2 Prime Factorization
#3 Ladder
See textbook pages for examples.
2. Place the notebook page into your binder – behind “Math Journal”
divider.

5. Today we learned…
…how to find common multiples and to identify the least common multiple (LCM) of two whole numbers 3

6. Rotation Day
Complete this assignment from math textbook as practice and review of Least Common Multiples.