Order of Operations

A WebQuest for 6th-8th Grade Math Students

Designed by

Wendy Esquivel

wkyle@sanjuan.edu

 

Introduction math
Task
Process
Evaluation
Conclusion
Teacher Page
Credits
Introduction

Can you go to your classes whenever you want or do you have to follow the order of the schedule you were assigned? Will your locker open if you use the three numbers in any order? Does it matter if you turn the lock to the left or to the right first? Does 2 + 5 x 3 equal 21 or 17? You will be using this WebQuest to find out the order of operations that must be followed when evaluating mathematical expressions so that everyone gets the same answer.

 

 

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Task

You are going to determine the order of operations that is used to evaluate mathematical expressions. Once you have done this, you will discover memory devices the United States uses to remember the order of operations and compare them to those that other countries use. Then create your own mnemonic and illustrate it using Microsoft Word. There will be several checks for understanding along the way including a matching challenge and an online quiz. Finally, you will work with a partner to analyze a problem that was done incorrectly and create a PowerPoint presentation that identifies the error in the problem and demonstrates the correct way to evaluate the problem with a step-by-step explanation.

 

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Process

1. What is the order of operations?

 

2. What are some memory devices used to remember the order of operations?

 

3. Find the error.

  • With a partner, take the online Order of Operations Quiz. Answer questions 15 and 16 on your WebQuest handout.
  • You and your partner will create a small PowerPoint slideshow . The answers to each problem are NOT correct. You will need to identify the error that was made, find the correct answer, and explain how to evaluate the problem. You will present your slideshow to the class. Check to make sure you have met all the requirements for your slideshow by filling in question 17 on your WebQuest handout.
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Evaluation
Order of Operations WebQuest Rubric

Beginning

1

Developing

2

Accomplished

3

Exemplary

4

Score

WebQuest Handout

10 - 13 correct answers

10 11 12 13

14 - 15 correct answers

14 15

16 - 17 correct answers

16 17

18 - 20 correct answers

18 19 20


Participation

Off task, talkative during presentations, frequently requires assistance

10 11 12 13

Requires frequent reminders to stay on task, needs assistance, some talking during presentations

14 15

Stays on task, self-motivated, good listener during presentations

16 17

Stays on task, self-motivated, good listener during presentations, helps others

18 19 20


Microsoft Word Mnemonic

Mnemonic is the same as the example, no graphics, unorganized

10 11 12 13

Mnemonic uses many of the same words from the examples, few graphics

14 15

Mnemonic is mostly original, graphic exists for each word, organized

16 17

Mnemonic is completely original, graphic exists for each word, organized

18 19 20


Finding My Error PowerPoint Slideshow

Made several formatting mistakes, was unable to correctly identify the error and failed to explain how to solve the problem

10 11 12 13

Made several formatting mistakes, was unable to correctly identify the error or correctly explain how to solve the problem

14 15

Followed almost all of the formatting requirements, great description of the error and how to evaluate the problem

16 17

Chose one of the challenge problems, followed all of the formatting requirements, excellent description of the error and how to evaluate the problem

18 19 20


Partner Skills and Presentation

Did not cooperate, presentation was unclear

10 11 12 13

One person did most of the work, only one person spoke during the presentation, some difficulty cooperating

14 15

Helped each other, took turns, both spoke during the presentation, some difficulty speaking

16 17

Helped each other, took turns, both spoke clearly and loudly during the presentation

18 19 20



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Conclusion

congratulationsYou completed the Order of Operations WebQuest! Not only did you learn the correct order of operations, you also created a mnemonic to help you remember them.

During this WebQuest, you were not asked to evaluate any problems with integers, but if you would like an extra challenge that includes positive and negative numbers try playing Operation Order! There is also an Advanced Set of 10 problems with integers you can try.

mind

Check out a poem about PEMDAS.

 
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Teacher Page

Order of Operations

A WebQuest for 6th-8th Grade Math Students

Designed by

Wendy Esquivel

wkyle@sanjuan.edu

 

Learners

This WebQuest focuses on 6th-8th grade order of operations problems without integers. Students need to know how to evaluate expressions involving powers before beginning this WebQuest. It is helpful if students know how to insert graphics into Microsoft Word as well as how to make a simple PowerPoint slideshow. If students are unfamiliar with PowerPoint, the Finding My Error presentation can be written on a transparency and presented on an overhead instead.

 

Curriculum Standards

This WebQuest requires students to think critically and be able to work collaboratively. The Math Standards Addressed include:

  • Using the correct order of operations to evaluate algebraic expressions, Algebra and Functions 1.4 (6th Grade), 1.2 (7th Grade)
  • Evaluating expressions involving integer powers, Number Sense 2.3 (7th Grade)
  • Using algebraic terminology correctly, Algebra and Functions 1.4 (7th)
  • Expressing the solutions clearly and logically using symbolic and verbal work to explain the solutions, Mathematical Reasoning 2.5 (6th Grade), 2.6 (7th Grade)

 

Resources Needed

One computer for each student is required in order for students to work independently on the first two steps of the process. However, the WebQuest will still work if there are not enough computers for every student if you have them work in pairs for all three steps of the process. Each computer will need to have internet access, Microsoft Word and PowerPoint.

Print the WebQuest handout for students before they begin the WebQuest.

One teacher can implement this lesson, but it would be helpful to have a parent or teacher's assistant circulate around the room.

Give the students a timeline to help with their pacing on completing the WebQuest. Depending on their computer and WebQuest experience, allow approximately one hour per task with an additional hour to practice their Finding My Error presentation, review the rubric, and complete the conclusion. Early finishers can try the Operation Order game and the Advanced Set of problems in the conclusion. Extra Credit could be offered for completing these challenges.

 

Evaluation

The Order of Operations WebQuest Rubric evaluates the WebQuest Handout, Participation, the Finding My Error PowerPoint Slideshow, and Partner Skills and the Presentation. The points on the rubric add up to 100 to make it easy to convert from total points to a percent. The only way students can receive an "A" for the Finding My Error PowerPoint Slideshow is if they choose one of the challenge problems. Printing the Order of Operations WebQuest Rubric and circling the points received might be the easiest way to assess student performance and provide feedback.

 

Conclusion

Students will work collaboratively and independently. This WebQuest will provide tutorials, memory devices, quizzes, games, and problems to analyze that will help students use the order of operations to evaluate mathematical expressions. Students will use algebraic terminology to explain how to evaluate problems during a PowerPoint presentation to the class.

 

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Credits
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