NAME ______________________________ DATE _______________

FAMILY LETTER

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Related Activities to Try at Home

Marble Jar Start with 4 objects in a jar (marbles, pennies, paper clips, or some other small objects). Imagine adding 6 more each day. How many will there be in 10 days? 20 days? 50 days?

100 days? Can you come up with a rule for determining the number of marbles in the jar after any number of days? Repeat the Marble Jar activity with other numbers (start with 5 marbles, add 9; start with 100 marbles, subtract 6; and so on). Can you make a graph to show these changes?

Number of Days Number of Marbles
Start 4
Day 1 10
Day 2 16
Day 3 22
Day 10 ?
Day 20 ?
Day 50 ?
Day 100 ?
Any number of days ?

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Table of Contents

Investigations 3 in Number, Data, and Space®, Student Activity Book Unit 1 Puzzles, Clusters, and Towers Unit 2 Prisms and Solids Unit 3 Rectangles, Clocks, and Tracks Unit 4 How Many People and Teams? Unit 5 Temperature, Height, and Growth Unit 6 Between 0 and 1 Unit 7 Races, Arrays, and Grids Unit 8 Properties of Polygons