\input zb-basic
\input zb-matheduc
\iteman{ZMATH 2015c.00945}
\itemau{Ngu, Bing Hiong; Yeung, Alexander Seeshing; Phan, Huy P.}
\itemti{Constructing a coherent problem model to facilitate algebra problem solving in a chemistry context.}
\itemso{Int. J. Math. Educ. Sci. Technol. 46, No. 3, 388-403 (2015).}
\itemab
Summary: An experiment using a sample of 11th graders compared text editing and worked examples approaches in learning to solve dilution and molarity algebra word problems in a chemistry context. Text editing requires students to assess the structure of a word problem by specifying whether the problem text contains sufficient, missing, or irrelevant information for reaching a solution. Worked examples direct students to follow steps toward the solution, and its emphasis is on computation instead of the formation of a coherent problem model. Text editing yielded higher scores in a transfer test (which shared the same solution procedure as in the acquisition problems but differed in contexts), but not a similar test (which resembled acquisition problems in terms of both solution procedure and context). Results provide some theoretical support and practical implications for using text editing to develop a coherent problem model to facilitate problem-solving skills in chemistry.
\itemrv{~}
\itemcc{M64 H34 D54 D44}
\itemut{algebra problem solving; chemistry; text editing; worked examples}
\itemli{doi:10.1080/0020739X.2014.979899}
\end