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{\b\fs28 Author E. Yackel}\line Retrieved from https://cepa.info on 23 Jan 2021
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Cobb, P. and E. Yackel. "Constructivist, emergent, and sociocultural perspectives in the context of developmental research." {\i Educational Psychologist}, 31.3\u150\'964 (1996): 175-190. Web.
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Cobb, P. and T. Wood and E. Yackel. "A constructivist approach to second grade mathematics." {\i Radical constructivism in mathematics education} Ed. E. Glasersfeld. Dordrecht: Kluwer, 1991. 157-176. Web.
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Cobb, P. and E. Yackel and T. Wood. "A constructivist alternative to the representational view of mind in mathematics education." {\i Journal for Research in Mathematics Education}, 23.1 (1992): 2-33. Web.
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