Mechanix: A Sketch-Based Tutoring System for Statics Courses
Mechanix: A Sketch-Based Tutoring System for Statics Courses
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Mechanix：基于草图的静力学课程辅导系统
DOI：
10.1609/aaai.v26i2.18966
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
T. Hammond
中科院分区：
文献类型：
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作者：
Stephanie Valentine;Francisco Vides;George Lucchese;D. Turner;Hong;Wenzhe Li;J. Linsey;T. Hammond
大型大学的入门工程课程每年的招生人数通常可达1000名学生。在班级规模和学生多样性如此巨大的教室中实现差异化教学是非常具有挑战性的。教授们只能通过多项选择题来评估学生是否掌握了一个概念，而详细的家庭作业，如平面桁架图，很少被分配，因为教授和助教们的评分负担太重，无法及时反馈有价值的反馈。在本文中，我们介绍了机械，一个基于草图的部署辅导系统的工程学生报名参加静力学课程。我们的系统不仅允许学生输入平面桁架和自由体图到系统中，就像他们会用铅笔和纸，但我们的系统检查学生的工作对手写的答案输入的教师，然后返回立即和详细的反馈给学生。学生可以纠正他们的工作中的任何错误，并重新提交，直到整个内容是正确的，从而所有的目标都是学习。由于Mechanix促进了评分和反馈过程，教师现在可以分配自由回答问题，增加教师对学生理解的了解。此外，迭代校正过程允许学生在测试期间学习，而不是简单地显示记忆的信息。
Introductory engineering courses within large universities often have annual enrollments which can reach up to a thousand students. It is very challenging to achieve differentiated instruction in classrooms with class sizes and student diversity of such great magnitude. Professors can only assess whether students have mastered a concept by using multiple choice questions, while detailed homework assignments, such as planar truss diagrams, are rarely assigned because professors and teaching assistants would be too overburdened with grading to return assignments with valuable feedback in a timely manner. In this paper, we introduce Mechanix, a sketch-based deployed tutoring system for engineering students enrolled in statics courses. Our system not only allows students to enter planar truss and free body diagrams into the system just as they would with pencil and paper, but our system checks the student’s work against a hand-drawn answer entered by the instructor, and then returns immediate and detailed feedback to the student. Students are allowed to correct any errors in their work and resubmit until the entire content is correct and thus all of the objectives are learned. Since Mechanix facilitates the grading and feedback processes, instructors are now able to assign free response questions, increasing teacher’s knowledge of student comprehension. Furthermore, the iterative correction process allows students to learn during a test, rather than simply displaying memorized information.