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Lesson Plan
7th & 8th Grade

Performance Indicator #4: Use content-specific tools, software, simulations (e.g., environmental probes, graphing calculators, exploratory environments, Web tools) to support learning and research.

(NETS: 3, 5; AZ 3, 5; MPS-TSS: 3.1, 3.2, 3.3, 3.4)


Subject: Mathematics
 
Title: Four 4's
 
Grade Level: 7 - 8
 
Time Required: 2 class periods
 
Description: Students will be able to only use four 4's to create a formula that they will be placing in a spreadsheet. They can use the number 24 and 44. The answers will start at the number 1 and end at 20.
 

Curriculum Objectives:

  • Mathematics Standard 1: Number sense 1M-E4. Develop and apply number theory concepts (e.g., primes, factors, and multiples) to represent numbers in various ways. PO5 Simplify numerical expressions using order of operations.
 

Materials Needed:

  • Spreadsheet such as Microsoft Excel or AppleWorks
  • Computer
 
Procedure:

  1. Students will be allowed to use only four 4's along with the numbers of 24 and 44 to get the answers of 1 to 20.
  2. Review the order of operations.
  3. Show students how to raise to the power of (caret) when using a formula on the spreadsheet.
  4. Show students how to square (SQR) a number using a formula on the spreadsheet.
 

Assessment:

Check the students' work. They should have the correct answer. One point for each correct answer with a total of 20 possible points.

Example:

4 + 4 + 4 + 4 = 16
42 — 4 — 4 = 8

 
 

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This page was last modified: November 21, 2003
For more information, contact: bemonfor@mpsaz.org