- Lesson Title: What’s on Sale at the School Store?
- Grade Band: 3-5
- Lesson Length: Approximately 2 days
- NCTM Standard: Number and Operations Standard
Connection to Bloom’s Taxonomy
When you enter a department store or supermarket, what do you notice?
Have students brainstorm what they see when they enter a store. The list could include the following: aisles, merchandise, shopping carts, shelves, and cash registers. Explain to the students that one of the most important components of a store is a price tag. The price tag lists the retail or selling price of the item. Every item that is to be sold has a retail or selling price.
Is the price tag always the final price the customer will pay?
Explain to students that there are many items for sale in a store and often there are items on sale. Sometimes a store may offer a discount to buyers. When an item is on sale, the retail or selling price is lowered by a certain percentage or by a fixed dollar amount. For example, during a sale, a book’s selling price might be lowered by 25% or be reduced by a fixed dollar amount such as $2.00 off.
Discuss the following questions:
Exploring and Learning
Extended Learning and Practice
The lesson objectives can be assessed by evaluating students’ abilities to:
Provide each student with an index card and have them answer the following questions on one side of the card:
On the back side of the index card, instruct the students to draw a picture of something they learned about during this lesson. The index cards can be hole punched and held together with a simple shower curtain ring.
- Discount Samples Worksheet
- Guided Practice: Calculating Sale Price
- Items on Sale Worksheet
- Items on Sale Key
- Assessment of Student Progress
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- Cooperative Learning
- Guided Practice
- Paired Learning
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Math Man by Teri Daniels is a humorous children’s book that provides a story line with real world math applications.
Math Man is actually Garth, a stock boy at the Mighty Mart supermarket. Math Man takes Mrs. Gourd’s class on a tour of the supermarket and provides them with real world math scenarios that use addition, subtraction, multiplication and other math concepts.
Recommended audience is grades K-5.
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Percent is from the Latin word per centum which was used as an abbreviation and means by the hundred. It was later abbreviated per cent. Using the period punctuation, but eventually the two words came together as one and the period was dropped. Have students create sentences using the word percent.
Hannie saved a percent of her allowance each week.
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- Merchandise: Items offered for sale in a store
- Retail price: The price an item is sold for in a store (same as selling price)
- Selling price: The price an item is sold for in a store (same as retail price)
- Discount: The amount the retail price or selling price is reduced
- Customer: Someone who pays for goods and/or services
- Cost: The amount a store pays to purchase an item for inventory
See vocabulary words for all lessons.