Andes is an intelligent problem-solving tutor for classical
physics.
Its was used in the fall semester of 1999 and 2000 by a group of
approximately
150 students. An assessment of its effectiveness was made using:
1) comparative results on a free-response test taken by the Andes group
and a control group, 2) portfolios of the students' work, and 3)
student
opinion surveys. The results of the assessment highlight some
strengths
and weaknesses of Andes.
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