Bavarian grade 11 students studying calculus with symbolic calculators with CAS
- the students in the project classes have learned in a more individualized way, they changed their working style, e. g. working with functions and equations, and they became acquainted with some new examples.
- No difference between symbolic classrrom and comparison classes was measured.  This calls into question the sensitivity of the tests used.

This reports on year 2 of a 9-year project to test the use of symbolic calculators (SC) in Bavarian “Gymnasien” (grammar schools) in Germany  in grades 10-12. During the 2006/07 and the following school years the project was implemented in grade 11. Calculus content included: basic properties of functions, limits, continuity, derivatives, and applications of calculus. SC used were TI-Voyage 200 and TI-Nspire, both with CAS. The project studied: how basic mathematical skills (algebraic transformations, solving equations) changed; how the students used the symbolic calculator, how they evaluated the use of the new tool. 


http://www.didaktik.mathematik.uni-wuerzburg.de/weigand/projekte.html