Transcript Learning through Ad-hoc Formative Paths

ICALT 2001
Learning through
Ad-hoc Formative Paths
Vincenza Carchiolo, Alessandro Longheu, Michele Malgeri
Informatics and Telecommunication Department
Catania University - Italy
e-mail: { car, alongheu, mm } @ diit.unict.it
6-8 August 2001, Madison, Wisconsin USA
ICALT 2001
E-Learning
Empowering E-L
- Developed inside
specific environments
(e.g. industries)
- Homogeneus contents
to homogeneus communities
Developing contents to
heterogeneus students,
differing for knowledge,
and learning rate.
Need to tailor courses
for each student.
Web boost
- Increasing bandwidth availability
- PC as enhanced terminals for
web-based applications
6-8 August 2001, Madison, Wisconsin USA
ICALT 2001
Goals
- Encourage active learning techniques
- Adjust formative (learning) path to students capabilites
- Learn how to use students available time
- Have an immediate feedback of each students activity
6-8 August 2001, Madison, Wisconsin USA
ICALT 2001
Summary
- Introduce a framework for interactive, adaptative E-learning
- Graph-based lessons repository
- Weighted and adaptable formative paths along the graph
- Tests, exercises, chatrooms, mailing lists, contacting
teacher
to assure interaction
- Present a prototype for E-learning in a web-based environment
6-8 August 2001, Madison, Wisconsin USA
ICALT 2001
Graph-based E-learning model - 1
•
Each node represents a subject matter
(one-argument lessons)
•
Each
difficulty
oriented
weighted
arc
measures
(time and knowledge required)
moving from one lesson to the next
6-8 August 2001, Madison, Wisconsin USA
the
ICALT 2001
Graph-based E-learning model - 2
- Weights are managed by the teacher
6-8 August 2001, Madison, Wisconsin USA
ICALT 2001
Graph-based E-learning model - 3
- The system automatically proposes to each student
all possible paths existing between two arguments,
according to student’s knowledge (profiling)
- Paths are given in terms of both difficulty and
time needed
- Paths are adapted dynamically to student’s needs.
6-8 August 2001, Madison, Wisconsin USA
ICALT 2001
Graph-based E-learning model - 4
1
3
2
5
4
Student A
6
6-8 August 2001, Madison, Wisconsin USA
Student B
ICALT 2001
-Test
Test and
withExercises
multiple choice questions automatically
generated (random)
- Exercise with open response
- Mark expressed in percentage
- On-line results checking for tests, off-line for
exercises
- Additional files related to the question can be easily
added
6-8 August 2001, Madison, Wisconsin USA
ICALT 2001
System Interaction
- FAQ Database on specific subject for students
- Mailing lists and chatrooms for students
- Database containing students profiles to adapt the
system
- Feedback to the student given online (tests) and offline
(exercises)
- Feedback to the teacher from log files to recalibrate
lessons and tests
6-8 August 2001, Madison, Wisconsin USA
ICALT 2001
Prototype architecture - 1
Users
Web-based environment
(lessons, tests and exercises, mailing lists, chatrooms…)
Slides
Electronic
Documents
APACHE
Web Server
PHP
Module
My SQL
Database
6-8 August 2001, Madison, Wisconsin USA
Images
Videos
ICALT 2001
Prototype architecture - 2
6-8 August 2001, Madison, Wisconsin USA
ICALT 2001
Future works
- refine the evaluation of difficulty for each
lesson
- enhance the prototype
- testing of the system is in progress...
6-8 August 2001, Madison, Wisconsin USA
ICALT 2001
Conclusions
A framework for an interactive, adaptative Elearning has been introduced.
•
Graph-based lessons repository to build and
adapt formative paths
•
Tests, exercises, chatrooms, mailing lists, to
assure interaction
A prototype for E-learning in a
environment has also been introduced
E-Mail: { car, alongheu, mm } @ diit.unict.it
6-8 August 2001, Madison, Wisconsin USA
web-based