One right way what culturally diverse students can teach us about math
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One Right Way? What Culturally Diverse Students Can Teach Us About Math. Barbara Acosta, M.S. Ed. Elementary and Middle Schools Technical Assistance Center (EMSTAC). Elementary and Middle Schools Technical Assistance Center. www.emstac.org. What can our students teach us about math?.

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One right way what culturally diverse students can teach us about math
One Right Way? What Culturally Diverse Students Can Teach Us About Math

Barbara Acosta, M.S. Ed.

Elementary and Middle Schools

Technical Assistance Center

(EMSTAC)




Ways math may differ across cultures
Ways Math May Differ Across Cultures Us About Math

  • Money and Measurement

  • Symbols

  • Language

  • Algorithms


Money
MONEY Us About Math

  • Money is money, right?

  • But wouldn’t you rather count cents, dimes and quarters than schillings?

  • How much is 250 ¢?


Measurement

What the heck is a decameter, anyway? Us About Math

MEASUREMENT


Symbols and notations
SYMBOLS AND NOTATIONS Us About Math


The language of math
THE LANGUAGE OF MATH Us About Math


Learn to count in chinese

Us About Math

Er

San

Si

Wu

Liu

Qi

Ba

Jiu

Shi

Learn to Count in Chinese


This makes place value a cinch too

10 Us About Math

11

12

This makes Place Value a cinch, too

31


Now let s add
Now Let’s Add Us About Math

31 + 24 = ?

31 + 20 = 51

51 + 4 = 55


How about subtraction
How about subtraction? Us About Math

13 – 9 = (10 + 3) - 9

= (10 - 9) + 3

= 4


Algorithms

Addition Us About Math

Subtraction

Multiplication

Division

ALGORITHMS


Addition around the world
Addition around the world Us About Math

1 2 3

+31718

5 0 1

Mexico

Britain

1 9 4

+ 3 91 1

2 3 3

Ireland


Scratch methods
“Scratch Methods” Us About Math

Phillippines

Japan

- 9 7

3 4 -

- 7 9 -

+3 5

2 4 5


Subtracting in italian
Subtracting in Italian Us About Math

832 – 226 = ?

610


Russian peasant multiplication
Russian “Peasant” Multiplication Us About Math

230 x 17

= 3910


Practice
Practice! Us About Math


Why can t i start on the left
Why can’t I start on the left? Us About Math

South Africa

Belize


Let s divide
Let’s divide! Us About Math


Regla de tres latin america
Regla de Tres Us About Math(Latin America)



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