Lesson 1
1. Lesson 1
1.5. Explore
Module 1: Sequences and Series
Explore
John Howard/Lifesize/Thinkstock
Some parents teach their children how to manage their money by giving them an allowance, or pocket money. The amount of the allowance may depend on the child’s age, his or her responsibilities, and other factors. Have you ever received an allowance? How did you spend your money?
Suppose a parent decides to give her son $5 per week, starting on his 6th birthday. Every year, he receives a “raise” in his allowance—an additional $3 per week. Can you determine what his allowance will be when he turns 17? By the end of this lesson you will be able to figure that out.
As you work through the lessons, you will come across math-related words that are unfamiliar to you. These words will be used over and over again, so it is important that you understand their meaning.
Save Module 1 Glossary Terms in your course folder now.
Each time you come across a new term in Mathematics 20-1, add the term and a definition to your copy of Module 1 Glossary Terms.
Remember that this glossary is for you! While your teacher will want to know that you are keeping your glossary document updated, the contents of the document will ultimately benefit you as you learn and review the concepts presented in this course. It is important that you write down definitions in a way that makes sense to you. For example, if you don’t understand the dictionary's definition, look elsewhere for wording that makes sense to you.

Here are some of the words you will want to define in Module 1 Glossary Terms in this lesson:
- coefficient
- sequence
- term
- arithmetic sequence
- common difference
- general term