Cyber Exchange Lesson Plan
 
 

Is There Enough String?

Authors: Pat Layton and Lynn Husen
School Name Maury Middle School
Grade Level: Sixth Grade and Seventh Grade

Subject
 
Math

Time Frame
45 minute activity

Objectives

In this lesson, students will:

Materials Charts of order of operations, computer, MS Word, paper and pencil, and number cubes.
These charts show the correct  order of operations. (Power Point Presentation) Netscape Procedure
The teacher will review the order of operations. (Multiply or Divide first, then add or subtract all numbers until you have the answer)
The teacher will call on students to explain the acronym that they have been using to help them to remember the order of operations. (Please Excuse My Dear Aunt Sally) This acronym helps students remember the correct order in which to evaluate an expression.  P=parenthesis, E=exponents, M=multiply, D=divide, A=add, and S=subtract.
The teacher will display and read the lesson’s word problem:
Phyllis needs an 80-foot piece of string. She has pieces 22 feet, 17 feet, and 31 feet long. Tied together, will these work? (no)
The teacher will call on volunteers to explain how he/she can use the 4 steps of problem solving to solve the question.
The teacher will call on volunteers to help create an order of operation problems.
The teacher will solve the first five student created problems.
The teacher will call on volunteers to come to the board and write new order of operation problems.
The teacher will then call of volunteers to come to the board and solve the problems.
The teacher will put students into groups of 4 students for the cooperative learning activity.
        Give each group of students six number cubes. Explain to the students that they are to practice creating and solving expressions using the order of operations. Each group is to write down on paper each problem that the group created. (These can be used as review problems throughout the year)
The teacher will monitor and adjust as necessary.
The teacher will close the lesson by calling on students to correctly solve the lesson’s word problem.
 

4 Steps of Problem Solving
Explore:  Look at information and decide what is being asked.  Take out unnecessary misleading information (junk).
Plan:  Determine what computation is necessary to solve the problem.

Clue Words:
contrast, compare, difference, more, least, less-Subtract
altogether, in all, total-Add
product, totaling equal groups-Multiply
per measurement, quotient, dividend, divisor-Division
Solve:  Student does actual computation
Examine: Does your answer make sense?
 

Curriculum Frameworks Addressed by this Lesson:

For additional relevant information, visit the following Web sites:

Title1: I’ve Got Your Number
URL1: http://www.col-ed.org/cur/math/math01.txt

Jefferson County Schools
http://207.125.93.3

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