Chapter 3: Powers and Exponents
Subject: Math Grade: 9
Lesson Length: 60 min
Content (Topic): Section 3.1 Using Exponents to Describe Numbers
Teaching Strategy: Direct
General Outcome: N9.1: Demonstrate (concretely, pictorially, and symbolically) understanding of powers with integral bases (excluding base 0) and whole number exponents including: representing using powers, evaluating powers, powers with an exponent of zero, and solving situational questions
Specific Outcomes: c. analyze the role of brackets in powers by using repeated multiplication and generalize strategies for evaluating powers involving brackets.
- Predict whether the value of a given power will be positive or negative
- Evaluate powers with integral bases (excluding base zero) and whole number exponents, with or without the use of technology
Students should be familiar with
- Powers and bases
- Identifying powers and bases
- Simplifying and/or evaluating expressions
Have assignment questions picked out
Have PowerPoint projected onto the white board
Have copies of vocab sheet ready to go
-Discuss with the class what the lesson will be about (the main areas of focus)
– Go through the vocabulary sheet with the class.
– Go through examples of repeated multiplication and evaluating powers
– Go through examples of evaluating negative and positive powers
– Assign pg. 97 # 10-13, 14, 16, 18
– Students will have the remaining time to work on their assignment
– Students may ask any questions they may have during this time
-Remind students of the importance to raise their hand if they have a question or an answer
-Include/call on all students equally
-Monitor student behavior by walking around
– Assessment: Have students reflect and respond to questions, have students do the your turn questions, and listen as students discuss what they learned.
-Students may pair up to complete the assignment if they are struggling, provided they stay quiet.
Powerpoint: 3.1 Using Exponents to Describe Numbers
The rest of the chapter is structured this way. At the end of the chapter I put together a Jeopardy game as one of the ways to assess the students knowledge.