20 MATH STORIES
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13. Big Party, Small Party (gr. K-4): Little Bear plans a party that is not too big or too small, and explores the number of chairs that fit around 16 tables in a rectangular array. [measurement; patterning; area; perimeter]

NUMBER
1. Something odd
2. Who's the Big Bad Wolf?
3. To infinity & beyond
4. Add it up!
5. Smart multiplication
6. Smart division

PATTERN/ALGEBRA
7. Colourful patterns
8. Making 10 - stage 1
9. Making 10 - stage 2
10. Math trains
11. Math waves
12. Scary patio patterns

MEASUREMENT/GEOMETRY
13. Big party, small party
14. Wolf gets hurt
15. Do parallel lines meet?
16. Mirror, mirror
17. How big is a billion?
18. Elephants' big ears

DATA/PROBABILITY
19. Tortoise & hare rematch
20. How left-handed are you?

 

     
 

Tables = area & chairs = perimeter?

Bear helps plan a party that is not too small and not too big, and discovers a relationship between area and perimeter.

Content: area and perimeter as an array of tables with chairs all around; finding arrangements with fewest chairs (shortest perimeter)

38 pages