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Shopping with Decimals


Shopping with Decimals

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This goal-directed instructional design plan is an assignment directed towards 4th and 5th grade students.  The assignment brings decimals into a real-world situation for the students allowing them to "shop" for items they want.  However, it still requires students to practice the skill of adding and subtracting decimals.
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Material Type: Assignment
Technical Format: PDF
Date Added to MERLOT: March 26, 2011
Date Modified in MERLOT: May 03, 2011
Submitter: Dana Collett
Keywords: decimals


  • Reviewed by members of Editorial board for inclusion in MERLOT.
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  • User review 4.5 average rating
  • User Rating: 4.5 user rating
  • Discussion (2 Comments)
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Primary Audience: Grade School
Mobile Compatibility: Not specified at this time
Technical Requirements:
Language: English
Cost Involved: unsure
Source Code Available: unsure
Accessibility Information Available: unsure
Creative Commons: unsure
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Discussion for Shopping with Decimals

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Avatar for Sara DeVoogd
5 years ago

Sara DeVoogd (Teacher (K-12))

The lesson articulates specific instructional objectives which address the identified problem for students to work toward understanding.  The objectives stated are categorized by performing skills, recalling facts, and applying principles.  In addition, specific standards are noted for Clarksville Montgomery County.  The defined objectives and standards are supported by the lesson activity.

Objectives and standards are not only provided but situated within a real world context.  The performance task asks students to perform add and subtract decimals in the context of money.  Additionally, the task allows students freedom to choose the types of purchases made which serves to increase motivation and student interest.

The lesson provides time for teacher modeling of the activity after students recall the necessary prior knowledge for the task.  Student groups are utilized to help students think about the types of purchases in addition to the modeled example providing students with a couple opportunities to think through the task that will be evaluated.  Students receive feedback from peers before submitting the final assignment for further feedback from the teacher.  This lesson offers students a couple chances to refine their work and explain their thinking to others.

Time spent reviewing site: 25 minutes

Avatar for Lisa Mele
5 years ago

Lisa Mele (Teacher (K-12))

I think this is a great lesson for students because it combines real world skills with studying decimal operations. The lesson builds on prior knowledge by allowing students to take what they know about adding and subtracting decimals and apply it to shopping on the Internet. I think it is a great that the lesson combines the online shopping element as well. It helps teach kids early on that real money gets spent online and could be a good Internet safety lesson for them. Great job!

Time spent reviewing site: 10-15 minutes