Lesson 1

Refresher

 

Visit Natural Numbers. Review the definition, and then follow the link to the demonstration applet. The demonstration applet shows how the number sets in the real number system are related to one another.

 

Move your cursor over the applet to see examples of natural numbers and examples from other number sets. Can you think of a few examples for each number set that are different than those shown in the applet?

 

You may need to ask your teacher for your school’s LearnAlberta login information.

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Use Extending Patterns Applet to review patterns in a table of values and pattern extension by applying the pattern rule. Try to discover how you can find patterns by comparing numbers up and down the same column and by comparing numbers across the same row.

 

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Now watch Exploring Patterns Video. Click on the tap-dancing image or the video link to watch an application of patterns in tap dancing!

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Try your hand at identifying and completing patterns by playing Exploring Patterns Video Interactive.

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Visit Formula for a definition and to review rearranging formulas. Under “Example” you will see how the width variable in the perimeter formula can be isolated by balancing both sides of the formula. There is a second example that shows how the radius variable in the circumference formula can be isolated.

 

Isolating variables is an important skill. This skill will save you a lot of time. You won’t need to guess and check, and you will have a method that lets you find the answer for any variable when given a formula.

Go back to the Are You Ready? questions and try them again. If you are still having difficulty, contact your teacher.