A Learning Activity is a strategy a teacher chooses to actively
engage students in learning a concept or skill using a digital tool/resource.

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Phase:

After/Explain/Elaborate

Activity:

Begin by asking students where they go grocery shopping. Ask students if they know why their parents have chosen the store they like. Explain that different stores have different prices for the same items.

The students will find five different items in three different stores using online ads. They should use the size of the item and the price advertised to find the unit rate from each store. The students will record the size and price for each item on the recording sheet and then calculate the unit price. They should circle the store that has the lowest price for each item.

Model the first example by finding the item in different ads (produce and beverage items work well). Model recording the price and quantity of each, and then review how to find the unit rate.

In closing, ask questions such as:

Which store had the lowest prices?

Did any of the price differences surprise you?

Do you think stores expect shoppers to calculate the unit rate before shopping?

Why might someone buy an item with a higher unit rate?

Assessment Strategies:

Check for understanding of the concept of the unit rate as the students are working. Ask students to explain how they chose which store to circle for each item; watch to be sure students aren't choosing the lowest overall price rather than the lowest unit price.

Advanced Preparation:

Make enough copies of the recording sheet for each student (or pair of students). You may want to post the link to the Sunday Saver website so students don't have to type in the URL.

Variation Tips (optional):

You can allow students to work in pairs or in small groups depending on ability.

Enrichment: Challenge students to create their ideal shopping list and find the unit price of each item. How many people would the list feed? How much would it cost to feed a family of four?

Notes or Recommendations (optional):

If students don't have access to digital devices, you can collect actual newspaper ads from local grocery stores. Many will be happy to donate the leftovers from previous weeks.