Factoring Integers
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Lesson Summary:
In this lesson, we start off with a review of factors and greatest common factors using integers, and then move on to factoring polynomials. We learn how to find the prime factorization of a number through factor trees and how to determine if a number is prime by checking all the prime numbers up to its square root. We also learn how to find the greatest common factor of two or more integers through prime factorization, and then apply this knowledge to polynomials. The lesson ends with an introduction to factoring by grouping or using the distributive property.
Lesson Description:
A review of factoring integers and finding greatest common factor and an introduction to factoring polynomials.
Additional Resources:
- Factoring Integers - Get practice factoring integers using a visual model!
- Factoring Integers 2 - Another way to visually factor integers -- build a rectangular area grid and the factors are displayed.
- Factoring Integers Homework - Homework with answers for factoring integers.
- Factoring Integers Homework 2 - More homework dealing with factoring integers.
- Lesson Slides - Slides that are written on from the lesson.
Questions answered by this video:
- What is a factor?
- What is a greatest common factor?
- How do you find the GCF?
- How do you find greatest common factor?
- What is a factor tree?
- What is a prime factor?
- How do you find the GCF of monomials?
- How do you find the GCF of polynomials?
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Staff Review
If factoring has you confused and disoriented, this is a great place to start. This lesson helps provide a solid foundation on which to stand when attacking factoring polynomials. Check this out and make sure to give the resources a good look. A great intro to factoring.
