Common Factors and GCF

Very simply, math whizzes need to compute the minimum common height for stacks of 12-inch and 18-inch boxes. The task meets the greatest common factor aspect of CCSS.Math.Content.6.NS.4. Because a duplicate of the same problem fits...

Incorporate riddles into your math lesson by having students make tree factors and determine if the number is a prime or composite. They will also use other clues to find the answer to the riddle while sharpening their multiplication...

Find the common denominator between prime factors, factor trees, and the distributive property. Scholars learn to find the least common multiple and greatest common factor of pairs of numbers. They rotate through stations to connect...

RJ instructs your sixth graders in two different methods of determining least common multiples. The first is by listing several multiples of each number, and the second is by drawing factor trees. This is an ideal flipped classroom...

Make some treat bags for the class by finding out how many treats go in each bag with the greatest common factor. The video goes step by step to find out the total amount of bags they can use. The method lists all factor pairs, not just...

When one method isn't enough to teach GCF, try two! This interactive webpage introduces factors and the prime factor tree to find the greatest common factor of two numbers. After the lesson, have learners click to try the two examples...

By creating a list of factors for two numbers, it is easier to see the greatest common factor. Each question in an interactive resource asks pupils to identify the greatest common factor for the numbers 24 and 36 in several different...

Find a common date when two friends order food at different intervals. The video reviews how to find multiples of different numbers. Your learners can practice with a table of multiples or look at a calendar to find the next day both men...

Here is a unique approach: youngsters use a Venn diagram to identify the greatest common factors of two numbers. This would be a good way to review the concept once they have been exposed to this topic. It includes sample problems that...

Using a word problem, the narrator helps describe how to find the greatest common factor. Not only does she explore the ways to identify the greatest common factor, she also shows how to determine when a math problem is asking for this...