Category: Probability & Data Analysis

World’s Largest Cookie

Grade: 3-8

The world’s largest chocolate chip cookie was created using 40,000 pounds of cookie dough! (The recipe is listed below.)

A school wants to make a smaller version of this cookie to feed all 800 students in their school. They decide that each pound of dough will feed 4 students.

How many pounds of chocolate chips will they need?

Anticipatory Set

Lesson Plan

Black Line Master

Solar Power City

Grade: 3-8

Solar panels collect energy from the sun so people can use that energy to power things in their homes.

Is it possible to power an entire city by using only solar energy?

New York City uses about 164,380 kilowatt hours of electricity each day. Usually, it takes 25 solar panels to produce about 5 kilowatt hours of electricity. How many solar panels would it take to power all of New York City for one day?

Anticipatory Set

Lesson Plan

Black Line Master

Magic Vase

Grade: 3-8

You’re planting in the garden and uncover a vase buried in the soil. After cleaning the vase, you place it on your bedside table.

You notice something shiny in the vase before you go to sleep. You pull out a handful of pennies and count them up. There are 6 pennies in the vase.

When you check the vase at the end of the second day, you count 12 pennies.

At the end of Day 3, you count 18 pennies.

How many pennies will be in the vase after 10 days? 25 days? 100 days? Can you come up with a rule to find the number of pennies in the vase on any day?

Anticipatory Set

Lesson Plan

Black Line Master

Magic Box

Grade: 3-8

Your Grandma gives you a wooden box for your birthday. When you unwrapped the gift and opened the box, you were expecting some cash inside but found the box was empty.

You felt bad for not appreciating the box, and decided you could use it to store important things. Just before you go to bed, you open the box to put a photo inside, and see 2 pennies.

When you check the box at the end of the second day, you count 4 pennies.

At the end of Day 3, you count 8 pennies.

How many pennies will be in the box after 10 days? 15 days? 20 days? Can you come up with a rule to find the number of pennies in the box on any day?

Anticipatory Set

Lesson Plan

Black Line Master

Magic Bag

Grade: 3-8

You’re cleaning out your closet and find a velvet bag in the corner. When you pick up the bag it feels heavy, and you find 24 pennies inside it. Before you go to sleep, you pull out the pennies and count them up again.

Now there are 27 pennies in the bag! When you check the bag at the end of the second day, you count 30 pennies.

At the end of Day 3, you count 33 pennies.

How many pennies will be in the bag after 10 days? 25 days? 100 days? Can you come up with a rule to find the number of pennies in the bag on any day?

Anticipatory Set

Lesson Plan

Black Line Master

World’s Largest Cookie

Solar Power City

Magic Vase

Magic Box

Magic Bag

An Apple a Day