Algebra 1 Online! Henrico County Public Schools, Virginia
Module - Factoring
Introduction - A Trip to Sea World
 Lessons 1- Factors and Greatest Common Factors 2- Factoring Using the Distributive Property 3- Difference of Squares 4- Factoring Trinomials 5- Perfect Squares and Factoring 6- Solving by Factoring 7- Module Review

Any trip to SeaWorld is not complete until you have seen a dolphin leap high above the water to grab a fish. Have you ever wondered how long a dolphin can stay in the air after jumping out of the water? In a standard park pool, dolphins can reach speeds of 24 ft/s. If a dolphin leaves the water traveling at 24 ft/s and it jumps h feet above the water after t seconds, then its formula is

h = 24t - 16t^2

When the dolphin returns to the water, it is 0 feet above the water. Thus, by substituting, the formula becomes 0 = 24t - 16t^2. An obvious solution of the equation is when t=0, but when time is 0, the dolphin has not jumped out of the water! In this unit, we will learn a technique called factoring that will give us the solution.

Upon completion of the activities in this unit, you should be able to:

• Use the following terms in a written paragraph to describe the key concepts of this unit.
• composite number
• greatest common factor (GCF)
• prime factorization
• prime number
• Find the greatest common factor (GCF) for a set of monomials.
• To factor polynomials using the GCF and the distributive property.