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WEB SITE AND CONCEPT MAPS TO TEACH STATISTICS Gloria Icaza, Carlos Bravo, Sergio Guiñez, Julio Muñoz Universidad de Talca, Chile Grant founded by Chilean Education Ministry TAL 0103

Outline • "Diversification of strategies for teaching and learning in basic sciences" Project – Statistics syllabus in University of Talca diagnosis – Project philosophy – Syllabus changes – Information Technology use – Web site description • Web site tour

Statistics classes before the project • 12 classes per semester (Biology, Economics, Engineer) • Up to 65 students per class • Limited access to computers and statistical software (25 PCs student lab) • Student financial limitations to buy textbooks

Statistics classes before the project • Syllabus consist of “math of statistics” (Ito, 2001). • Contents: descriptive statistics, probability, inference, and methods

Project philosophy • Emphasis on conceptual and data analysis oriented classes (Cobb, 1992) • Statistics as a tool of scientific method (“Interactive Statistics” Aliaga, Gunderson, Prentice Hall, 2003) • Information Technology (IT)

Syllabus change • Decisions with statistics • Data production • Type of studies • Descriptive statistics • Basis for inference • Inference • Methods

IT use • Web courseware: Web. CT • Web site • Statistical software

Web. CT • General class information: syllabus, time schedule, news, grades, homeworks, databases…

Statistics website • Organized around scientific method • Based on objects learning • Concept maps are imbeded

Object learning model • • Concept map Lecture notes Proposed exercises Solved exercises Online questions Suggested bibliography Explicative hypertexts Simulations applets

asynchronically • 95 SPSS network licenses • SPSS tutorials in website • Tutorial room

Software • Dreamweave: web site construction • Cmap. Tools: concept maps • Flash and Descartes: simulation applets • Hot. Potatotes: online questions

STATISTICS website tour http: //dta. utalca. cl/estadistica/

Challenges • Student appropiate use • Website update • Thesis students tools