11 Non-linguistic symbols

0 o 00 probability correct o o o o o o o oo o o oo oo

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Unformatted text preview: verbal interference motor interference both interference o oo 0.0 probability correct oo oo o ooo oo oo oo oo o ooo o o ooo oo o o oo o o o o oooo 4 5 number of two-digit addends 6 ooo o o 7 8 o Group data plus controls o o o o o o o o o o o o o o 0.6 o o o o oo o o o o oo o o o oo oo o o 0.4 o o o o o o oo o oo oo oo o o oo oo o o o oo o o o o oo oo o oo o o o o o o o o o o o o o o o o o oo oo o o o o o oo o o o o o oo oo o o oo o o o o o o o o o o oo o o o o o o o o o 0.2 o 0.2 o o o o o o oo o o o o o o o o oo o o o o no interference verbal interference motor interference both interference o o o o o oo oo oo o oo o o oo oo o oo oo o oo o o o o o o oo oo o oo o o o oo oo o o o o o o o o o o o o n=21 o o oo oo oo oo oo o oo o oo oo oo o o o o o o o oo oo oo oo o o o o o o o oo o oo o o o oo oo oo oo oo oo oo o oo oo o oo o oo o o o o o o o o o o o o oo o o o o oo o o o o o o oo o o o o o o o o o o o oo o oo oo o o 1 2 3 4 5 6 number of two-digit addends 7 8 0.0 o 0.0 probability correct o o o o o o o oo o o oo oo oo 1.0 o oo o oo o o o 0.8 o o o oo o o o o oo o o o o o o o oo o oo o o o o n=15 0.6 o oo oo o o oo o o Controls 0.4 o oo o oo oo oo o oo oo oo oo o oo 0.8 1.0 Abacus Users oo o 1 2 3 o o oo oo oo o o o oo o 4 o o oo o oo o o 5 o 6 7 8 Neon Brooks, U of Chicago Ques)on 3: What are the hands doing? Work by Neon Brooks at University of Chicago w/ Mike Frank & Susan Goldin-Meadow Demo Huge variability! Variability Gesture size correlated with difficulty Very Easy Easy Threshold Hard Why do kids gesture? 1.  It’s just a habit kids pick up when they learn physical abacus 2.  It actually helps kid hold the abacus in mind when they do problems Evidence against #1: interference S)ll: What is Gesture Doing? 1.  Feeding back into representa)on: visual or motor feedback (propriocep)ve informa)on) facilitates computa)on. 2.  Indicator of motor involvement: gestures themselves are not cri,cal, but motor/premotor processes are playing an ac,ve role in solving the problem. What is gesture doing? •  Visual Feedback •  Proprioceptive Feedback •  Motor Planning Abacus Gesture Blindfolded Gesture Last ques)on •  Does this crazy technique help kids? Abacus: a superior algorithm for arithme)c “An exciting contest between the Japanese abacus and the electric calculating machine was held in Tokyo on November 12, 1946, under the sponsorship of the U. S. Army newspaper, the Stars and Stripes… ‘The machine age tool took a step backward yesterday at the Emie Pyle Theater as the abacus, centuries old, dealt defeat to the most upto-date el...
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This document was uploaded on 01/30/2014.

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