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PEMDAS: Order<br />
Up!<br />
Fifth Grade Math 65 minutes Standards: 5.OA.A.1<br />
by Rhondra Lewis<br />
July 30, 2015<br />
Teach students that <strong>order</strong> matters with this lesson about PEMDAS. Students will practice both in<br />
a gro<strong>up</strong> and individually to ensure their understanding.<br />
Learning Objectives<br />
Students will evaluate expressions using the <strong>order</strong> of operations.<br />
Materials and Preparation<br />
Algebraic Expressions worksheet<br />
Order of Operations: PEMDAS worksheet<br />
Note cards<br />
Key Terms:<br />
Attachments<br />
PDF<br />
PDF<br />
Algebraic<br />
Expressions<br />
Order of<br />
Operations:<br />
PEMDAS<br />
Get more lesson plans at www.education.com/lesson-plans/
Lesson<br />
Introduction (5 minutes)<br />
Prior to conducting this lesson, gauge students' understanding of the <strong>order</strong> of operations.<br />
Write a pair of equations on the board similar to: 5 × 3 + 6 and 5 + 3 × 6<br />
Discuss the rules that must be followed for this problem to be solved correctly.<br />
Have students insert parentheses around the multiplication or division part in the<br />
expressions.<br />
Discuss the similarities and differences in the problems and the change in results this<br />
would cause.<br />
Explain that at the conclusion of this lesson, they will be able to solve problems that require<br />
them to know the <strong>order</strong> in which operations should take place.<br />
Explicit Instruction/Teacher Modeling (15 minutes)<br />
Using the Algebraic Expressions worksheet, section 2, write an equation on the board.<br />
Use parentheses to evaluate the expression in two different ways.<br />
Explain the difference in the two expressions.<br />
Then, use the <strong>order</strong> of operations to solve the equation.<br />
Reveal the correct answer.<br />
Guided Practice/Interactive Modeling (10 minutes)<br />
Using the remaining problems on the Algebraic Expressions worksheet, section 2, have<br />
students use parenthesis to solve the equations.<br />
If you use the key that is provided to answer the questions, you will have to provide<br />
parenthesis that will equate to the correct answer.<br />
Allow students to work in small gro<strong>up</strong>s or pairs to solve each problem.<br />
Independent Working Time (25 minutes)<br />
If your students have not yet learned exponents, explain them now or make the five<br />
questions on the worksheet that requires them optional.<br />
Using the Order of Operations: PEMDAS worksheet, have students use the <strong>order</strong> of<br />
operations to work through each of the problems.<br />
Get more lesson plans at www.education.com/lesson-plans/
Extend<br />
Differentiation<br />
Enrichment: Allow students to create their own problems and solve them.<br />
S<strong>up</strong>port: Have students create a PEMDAS foldable or cheat sheet that they can use as<br />
they work through each problem.<br />
Technology Integration Related Books and/or Media<br />
Review<br />
Assessment (5 minutes)<br />
Have students identify the PEMDAS components.<br />
Then have students write the following equation on a note card: 5 – 3[23 – 5 + 7 (-3)]<br />
Have each student solve the equation individually and turn it in as an exit ticket.<br />
If time permits, allow students to solve the equation using the whiteboard.<br />
Review and Closing (5 minutes)<br />
Recap today’s lesson, and emphasis the importance of the <strong>order</strong> of operations.<br />
Allow students to ask questions that they still have and make comments about what they<br />
have learned today.<br />
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Get more lesson plans at www.education.com/lesson-plans/
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