The Fruit Stand is Open

Objective

Using money. Find seeds on fruits at grocery store for science extension (Foss-Structures of Life). Visual estimation tips (Visual estimation)--close enough is okay and requires practice (Estimation tricks). Making change for $1 dollar (Change for $1).

CA Standards--Second Grade

Using coinage; adding

CA Standards--Third Grade

Easy multiplication
Estimation
Structures of Life—Foss

Materials

Use mix of fresh and frozen fruit, depending on the season. Pre-prep 3 bags with 3 of the items below, for example, 37 Goldfish, 26 tomatoes and 19 grapes.

Use same bag with 50 corn kernels from previous lessons.
Goldfish crackers
Cherry tomatoes
Grapes
Frozen strawberries
Frozen mixed berries
Regular coins (for display) and plastic coins, enough that kids can have $1.50 for each pair.
Plastic plates, plastic knife, cutting board

Procedures

Find the seeds in the fruits above. Cut in 1/2 if necessary.
Estimation Tips: The process of estimation is not ex

act. It’s close enough and fast! Take a guess. It’s very useful but takes practice. Think of a small square as being part of a whole rectangle. Measure by eye the number of small boxes then multiple the width by the length. Show bag of 50 corn kernels. Show how you might lay the bag flat and see how many kernels are in a small square then illustrate how you would multiply by the height and width to get an estimate.
Hold up each bag of Goldfish, Grapes and Cherry Tomatoes so kids can take a guess.
Once everyone has an answer written down, tell them the actual number.
Lesson can end here if you don’t have time or can be continued until the following week. Review coinage both plastic and real. Children shouldpair off and have $1.50 between them.
Place fruit in central location on the table and have them sell/buy fruit from each other. They have to stay within their budget and can use theback of the sheet to tally.
If this is done in two lessons, can use the second 1/2 of this lesson to introduce Counting Up or Making Change for $1 while they eat their snack.

Use an example, like someone buys an apple for 4¢, illustrate that you can do 100 pennies minus 44 or just count up so 1 penny, 1 nickel, then 2 quarters which can be done much more quickly and accurately.

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