Please note: The NCTM conference program is subject to change.

43- Adding and Subtracting Numbers Using ideas from before Columbus

Thursday, November 3, 2011: 10:30 AM-12:00 PM
Grand Pavilion V (Hyatt Regency Albuquerque)
Co-Speaker:
Laura Serpa
Lead Speaker:
Olga Kosheleva

Come to learn about number representations based on the ideas from before Columbus's era. Original thinking of indigenous people has brought us new, simple manipulatives (counters, sticks, and shells) that can help strengthen place-value understanding. We will explore these representations through addition and subtraction.

Presentation Format: PreK-2 Gallery Workshop
Grade Band Audience: 3 to 5, PreK to 2

See more of: PreK-2 Gallery Workshop
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