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# One Right Way? What Culturally Diverse Students Can Teach Us About Math - PowerPoint PPT Presentation

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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## PowerPoint Slideshow about 'One Right Way? What Culturally Diverse Students Can Teach Us About Math' - maine

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Presentation Transcript

Barbara Acosta, M.S. Ed.

Elementary and Middle Schools

Technical Assistance Center

(EMSTAC)

www.emstac.org

Ways Math May Differ Across Cultures Us About Math

• Money and Measurement

• Symbols

• Language

• Algorithms

• Money is money, right?

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

• How much is 250 ¢?

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

MEASUREMENT

SYMBOLS AND NOTATIONS Us About Math

THE LANGUAGE OF MATH Us About Math

Er

San

Si

Wu

Liu

Qi

Ba

Jiu

Shi

Learn to Count in Chinese

11

12

This makes Place Value a cinch, too

31

31 + 24 = ?

31 + 20 = 51

51 + 4 = 55

13 – 9 = (10 + 3) - 9

= (10 - 9) + 3

= 4

Subtraction

Multiplication

Division

ALGORITHMS

1 2 3

+31718

5 0 1

Mexico

Britain

1 9 4

+ 3 91 1

2 3 3

Ireland

Phillippines

Japan

- 9 7

3 4 -

- 7 9 -

+3 5

2 4 5

Subtracting in Italian Us About Math

832 – 226 = ?

610

Russian “Peasant” Multiplication Us About Math

230 x 17

= 3910