Working algebraically
and developing algebraic sense – as a priority. Can CAS and
interactive geometry help?
Anthony
Harradine aharra@pac.edu.au Noel Baker Centre for
School Mathematics Australia
Abstract
In most introductory algebra classrooms of the world the highest
priorities seem to be algorithms (learning and practicing them) like
adding like terms, expanding brackets and so on. During this
tutorial you will experience an alternative to this. It does not
downplay the importance of said algorithms, but builds a foundation
on which they can be built successfully. This approach has the
students asking for the algorithms!
The priority in this case is to develop the ability to work
algebraically and to develop algebraic sense through engaging in
some delightful but simple problems that all students can cope with.
The approach employs a revolutionary use of a Computer Algebra
System (CAS) as well as use of an interactive geometry system (IGS)
and is part of a pilot project being run in NZ schools.
While a variety of electronic technologies can be used, during
the session we will use the CAS and IGS on the Casio ClassPad
300.
