Check your work

ACP Lesson Plan
Title: Check Your WorkAuthor: Nick Schaumberg
Subject(s):  Math
Grade Level(s): 6-12Total Time: 30-45 Minutes

Overview / Description:

This will help students understand why it is important to check your work after you complete a math problem. They will be searching other students work to find a mistake in the work they completed.

Learning goals/objectives:

After completing this activity, students should be able to . . .

check their work.

explain their work.

know that their answer is correct.

Workplace Readiness Skill: 

    Social Skills  x Communication 
 x   Teamwork      x    Critical Thinking
   Attitude and Initiative    Planning and Organization
   Professionalism    Media Etiquette

Content Standards:

Make sense of problems and persevere in solving them.

Construct viable arguments and critique the reasoning of others.

Attend to precision.

Explain each step in solving a simple equation as following from the equality of numbers asserted at the previous step, starting from the assumption that the original equation has a solution. Construct a viable argument to justify a solution method.

Educational Frameworks

B-LS 1. Demonstrate critical-thinking skills to make informed decisions 

B-LS 9. Gather evidence and consider multiple perspectives to make informed decisions


This can be used with any type of solving unit. I will be using this in my Tech Math class in our solving equations unit.  

The teacher should have enough problems for one for each student.  Multiple students could solve the same question.

Learning Activities:

WHO (T=Teacher Focus Lesson; WG=Whole Group\; SM=Small Group; I=Independent)

Learning Activity Task                                                WHO is responsible
for this step?
Approximate time
for task
Students work on one problem that has multi-steps. They should complete the problem incorrectly.  They should also check their work.I10 minutes
Students get into groups of 3-4 and trade papers.  Students will try to find where the original student went wrong.  Once they find the error, students will fix the problem.  SG/I10 minutes
Once all students are done, each student will explain where the error occurred and how they changed it to find the correct answer.SG20 minutes
Wrap up discussion on why is checking your work important.WG5 minutes

Assessment: I will collect the papers that have been completed and check over what the students completed.

Wrap-Up: Talk about why checking your work is important.

Extension Activity (for intervention or enrichment): Students could video their response and where they found the mistakes.


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