David Tall conducted a study to investigate 16 year old students’ concept image and concept definition. The students were asked to draw the tangent to the following graph at the origin. Some students did not cope with the task and asserted that “...because the tangent should touch the line at one specific point but this tangent would touch it constantly." Which of the following best describes the cause of the students’ answer?
AAlmost always the concept definition will be evoked by students when solving problems
BAlmost always the concept image will be evoked by students when solving problems正確答案
CThe concept definition includes a form of words used to specify the concept, however, the students were asked to draw a tangent in this case
DThe concept image includes a form ofwords used to specify the concept, however, the students were asked to draw a tangent in this case
答案與詳解
