Adaptive WebBased Leveling Courses

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Adaptive Web-Based Leveling Courses

• Shunichi Toida, Chris Wild, M. ZubairLi Li,
  Chunxiang Xu
• Computer Science Department
• Old Dominion University

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Outline

• Motivation and background
• Objectives
• System Overview
• functional requirements
• implementation
• Status
• Course structure Jtree
• Artificial intelligence in discrete math
• Student/peer awareness
• Future Work
• Conclusions

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Needs

• Non-traditional Student
• Second Career
• Transfer
• Second Major
• Non-traditional Delivery
• At Work/Home - Anywhere
• Evenings?weekends Anytime
• Less expensive

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Technology

• Inexpensive/Ubiquitous Multi-media PCs
• Improving Communications (internet)
• Effective Utilization will require
• Learning models
• Methods of organization and delivery
• Motivational mechanisms

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Background

• ODU CS Dept TechEd initiative
• BS degree for AA graduates
• Target non-traditional students
• Web-centric delivery of course material

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Background

• ODU CS Dept TechEd initiative
• BS degree for AA graduates
• Target non-traditional students
• Web-centric delivery of course material
• Problem Diverse backgrounds of entering students

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Background

• ODU CS Dept TechEd initiative
• BS degree for AA graduates
• Target non-traditional students
• Web-centric delivery of course material
• Problem Diverse backgrounds of entering students
• Solution Leveling courses in discrete math and
  programming

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Objectives

• To develop courses that are
• adaptive
• web based
• leveling
• supported by AI technologies
• managed

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System Overview
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Use Case Summary
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Functional Requirements

• Students
• Navigate the course based on his profile and
  progress
• Get status on his/her progress and his relative
  performance
• Immediate feedback where possible
• Instructor
• Specify courses structure
• Classify course contents
• Monitor students performance
• Trouble Alerts

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Architectural Features

• Course description including pre-requisite
  structure (Oracle)
• IEEE Learning Objects Metadata Standard
• Student profile and progress (Oracle)
• Browsing support for course structure using
  applet
• Content access based on student progress

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Status
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Query-based content selection
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Student/Peer Awareness

• Problem motivating in a self-paced course
• Show progress relative to peers
• Show current class averages in assessment material

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Artificial Intelligence in Discrete Math

• Theorem prover and symbolic computation are
  used for exercises on
• English to logic translation
• Checking inferences
• Checking induction proofs

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Proving Equivalences of Natural Language to Logic

• Translate the following sentence into predicate
  calculus using likes(x,y) predicateNobody
  likes JOHN
• There are multiple correct answers

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Proving Equivalences of Natural Language to Logic

• Translate the following sentence into predicate
  calculus using likes(x,y) predicateNobody
  likes JOHN

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Handling Multiple Solutions

• Restrict response to unique canonical form
• Compare student response to all correct/obvious
  answers
• Prove equivalence of student response to any
  correct answer

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Handling Multiple Solutions

• Restrict response to unique canonical form
• Compare student response to all correct/obvious
  answers
• Prove equivalence of student response to any
  correct answer
• TPS Theorem Proving System

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Induction Proofs

• Built on the MAPLE symbolic computation system of
  MATLAB
• Example
• 12 n n(n1)/2

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Example of Jtree/and some content
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On-going and Future Work

• Continue development of course materials
  (adaptability, exercises)
• Integrate pieces
• Define evaluation metrics (market, effectiveness)
• Run assessment

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Conclusions

• Need to serve non-traditional students
• Need to adapt to diverse backgrounds
• Need learning environment architectures and
  technologies
• Need effective learning strategies which leverage
  the potential of web connectivity

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End of Presentation
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Student Profile
lt?xml version"1.0"?gt lt!DOCTYPE STUDENT PROFILE
"profile.dtd"gt ltcourse title"cs381 course"
studentJohn Smithgt ltblock title"Propositiona
l Logic" status"U"gt ltblock
title"Proposition" status"U"gt ltlesson
title"What Is Proposition" href"coursecs381,bl
ockcs381-1- block1.2,lessoncs381-less
on01"gt lt/lessongt lt/blockgt
lt/blockgt lt/coursegt
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Course Navigation

• Java applet navigation of high level course
  structure
• Access controlled by student profile

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Course Development

• XML Course Mark-up Language
• Customized for course structure
• e.g. course, block, lesson (marks)
• Web-based Development Tools
• Servlet (Tomcat)
• Java Server Page (Tomcat)
• Java

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