1. Lesson 5

Mathematics 20-1 Module 5

Module 5: Radicals

 

Lesson 5: Modelling Problems with Radicals

 
Focus

 

This is an image of a planet.

Hemera/Thinkstock

 

One complete orbit of a planet around a star represents the planet’s year. The time it takes for one complete orbit (T) can be accurately predicted by the radical equation , where K is a constant and r is the distance the planet is from the star.

 

As you may have noticed while working on Module 5 Project: Plan a Planet, radicals are found in many different equations associated with the universe. Throughout this module you have seen a wide variety of equations that use radicals. In this lesson you will use radical equations to model a variety of different situations on Earth and throughout the universe. You will develop some of these equations yourself.

 

Outcomes

 

At the end of this lesson you will be able to

  • solve a problem that involves radical expressions

  • solve problems by modelling situations using radical equations
Lesson Question

 

You will investigate the following question:

  • How do you solve problems by modelling situations using radical equations?
Assessment


Your assessment may be based on a combination of the following tasks:

  • completion of the Lesson 5 Assignment (Download the Lesson 5 Assignment and save it in your course folder now.)

  • course folder submissions from Try This and Share activities

  • additions to Module 5 Glossary Terms and Formula Sheet

  • work under Project Connection