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		No cover image available Simulating the understanding of arithmetic : a response to Schoenfeld by Ohlsson, Stellan Material type: Text; Format: print ; Literary form: Not fiction Availability: No items available.
		No cover image available The cognitive complexity of learning and doing arithmetic by Ohlsson, Stellan Ernst, Andreas M Rees, Ernest Material type: Text; Format: print ; Literary form: Not fiction Availability: No items available.

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