Examples of concrete, semiconcrete, iconic, pictorial, abstract, symbolic representation in mathematics

 

Concrete:
Addition of two odd numbers solved with a concrete representation

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Iconic
Addition of two odd numbers solved with an iconic or semiconcrete representation

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Formal operational
Addition of two odd numbers solved with a symbolic representation

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Is the following example of odd and even concrete, semiconcrete, or symbolic? Support your answer.

ODD
EVEN

OD
D

EV
EN

 

Dr. Robert Sweetland's notes