ePortfolio in

Martin Homik, Erica Melis-- ActiveMath Group –-www.activemath.org

ePortfolio 2005, Cambridge

German Research Center for Artificial Intelligence (DFKI GmbH)Saarland University

Outline

1. Motivation2. ActiveMath3. Workbook (ActiveMath’s ePortfolio)

4. Capturing Semantics in Workbook

5. Architecture6. Conclusion

Motivation

1. Current ePortfolios: standalone applications• Integration into large systems, in general?• Integration into learning environments?

2. Definition: “… collection of evidences…”• How to capture reflection on processes?• How to turn implicit knowledge into explicit one?

3. Function: store and provide access• How to support users?

ActiveMath

• Web-based• User-adaptive• Interactive• Semantic KR• Service-based

ActiveMath

• Web-based• User-adaptive• Interactive• Semantic KR• Service-based

ePortfolio in ActiveMath (Workbook)

Assembly Tool

• Students are “book smart”

• Assemble own books

• Supports meta-cognitive skills

• Store locally/upload

Learning log

• Self-managed documentation of learning objectives

• Base on experience with paper logs

• Reflection on:– Content– Process– Meta-Cognition

Hypotheses

• Formulation and justification

• Annotated by beliefs

• Supports:– Reasoning– Problem solving – Argumentation

Views and Queries

• List entries: all/specific type/specific period• … related to a specified learning object • … related to LOs a learner does not understand• … related to LOs a learner did not understand in

first place, but has learned meanwhile. • ….

Capturing Semantics

• By structure– We know what we ask

• By multiple choice questions– We can interpret answers

• By template answers– We can interpret answers without full understanding

• By drag&drop– We can relate entries to learning objects

Capturing Semantics: Structure

Questions related to:• General data • Content • Process • Meta-cognition

• Label • Privacy• Date

• What was the lesson about? Write a summary. • What did you (not) understand? • Formulate questions to issues you did not understand.

• What kind of tools or resources did you use for solving? • Who helped you? • What difficulties arose during problem solving? • What learning objects were most helpful to you? • How would you rate your performance? • Did you achieve your goals? If not, why? • Who can help you?

Capturing Semantics: Drag&drop

http://demo.activemath.org:8080/... mbase://LeAM_calculus/diffquot/def_diff_quot

Architecture

MathKnowledge Base

LearnerModel

Server ClientsWeb

Server

ManagerJNLP (http)

retrieve Learning logDatabase

Outlook

• Evaluation: – Currently in seminar with 15 university students– Planned for LeActiveMath EU-Project

• Investigate learning logs (types, semantics, …)• Enhance collaboration • Increase interaction with ActiveMath’s services • Compare learning logs with learner model• Integration of more reflection-supporting tools • (Examine) Export in IMS ePortfolio

Conclusion

• ePortfolios in learning environments– Not restricted to collection of evidences– Store reflection processes

• Explicit reflection supports meta-cognition• Capturing semantics enables provision of user-

adapted support

Still a lot of interesting work to do.

Thank you.

www.activemath.org