Building a dialogue in TuTalk to teach Pythagorean Theorem by Damian

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Building a dialogue in TuTalk to teach
Pythagorean Theoremby Damian I-Pei

• Goals
• Build a dialogue to support the learning of
  Pythagorean Theorem
• Make dialogue interactive and simple
• Build on simple and related concepts which will
  lead students to a better understanding of
  Pythagorean Theorem
• Context of design
• Domain Mathematics
• Target Group Grade 7/8 students

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Building a dialogue in TuTalk to teach
Pythagorean Theorem

• Damian Clarke I-Pei Tung
• Track TuTalk
• Mentor Carolyn P. Rose
• PSLC Summer School 2007

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Goals

• Build a dialogue to support the learning of
  Pythagorean Theorem
• Make dialogue interactive and simple
• Build on simple and related concepts which will
  lead students to a better understanding of
  Pythagorean Theorem

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What is TuTalk?

• Dialogue authoring tool for non-technical users
• Allow learning researchers to study dialogue
• Allow educational technology researchers to
  quickly build dialogue based help systems for
  their tutoring systems

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Authoring Dialogue Framework

• Author designs dialogue
• Author edit dialogue in the development component
  of tool
• Author defines steps and boundaries in the
  development component of tool
• Author test dialogue in the development component
  of tool
• Dialogue is deploy to end user via end user
  component of tool

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Context for Pythagorean Theorem Dialogue

• Domain Mathematics
• Learning Topic Pythagorean Theorem
• Target Group Grade 7/8 students

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Designing the dialogue for the learning
environment experiment

• Dialogue tested background knowledge
• Properties of a triangle sides, angles, sum of
  the angles, types
• Dialogue introduced concepts of right triangle
• One 90 internal angle(a right angle)
• The side opposite to the right angle is the
  hypotenuse, as the longest side in the right
  triangle

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Designing the dialogue for the learning
environment experiment

• Introduce the theorem
• Well-formed word problem
• Cognitive walkthrough processes

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Authoring Dialogues
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Testing Dialogues
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Preview Dialogues
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Producing Dialogues
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Designing Dialogue

• Difficult to introduce this topic solely from
  conceptual and real life analogies
• Did a survey to acquire various learning
  experiences from other workshop participants
• Decided on a procedural approach of stepping
  through an example

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Using TuTalk

• Learning curve to configure system to build
  dialogue was reasonable
• Authoring dialogues are relatively simple
• Too many steps adding and updating concepts (e.g.
  concept manager)

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Using TuTalk

• Suggestions
• Integrate the preview tab and the author tab, by
  making preview tab main development area
• No more right clicks
• Pop or drop down menu to add or update concepts
• Editing area for concept manager bigger
• Color code end user and tutor dialogue
• Accommodate longer-answer responses

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Future Implementations

• Integrating graphical representation with
  dialogues via importing from other software
• Providing with the feature of longer answers
  (e.g. explanations and justifications) can be a
  valid way to understand learners conceptual
  knowledge
• Archiving system usage with specific group of
  users to analyze the process of initiatives,
  responses, and feedback to create a user model
• Inviting international users to implement it and
  further provide the system developers with
  feedback and constraints they encounter