Teaching With Concrete and Abstract Visual Representations: Effects on Students’ Problem Solving, Problem Representations, and Learning Perceptions
نویسندگان
چکیده
visual representations are those that use conventional symbols to represent the relevant elements of a problem’s cover story. For example, the top portion of Figure 1 illustrates the conventional circuit symbols of the following problem: “Consider two resistors with resistance values R1 6 and R2 12 connected in parallel to a voltage source with V 9 V. Find the total resistance of this circuit.” Although concrete visual represen33 CONCRETE AND ABSTRACT VISUAL REPRESENTATIONS
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