Die onderrig van negatiewe getalle in die primere skool : 'n onderrigeksperiment

Malan, I. G.(Ian Gerrit) (1987)

Proefskrif (M.Ed.) -- Universiteit van Stellenbosch, 1987.

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Please refer to this item in SUNScholar by using the following persistent URL: http://hdl.handle.net/10019.1/65639
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