Using
Edmark's Virtual
Electricity Lab demo to teach elementary science
by Alan Zisman (c) 2003
Most elementary
school
science curriculums include a unit on electrical circuits. In BC
(Canada), for instance, it is expected to be included in grade 5.
Unfortunately,
letting
young children have hands on experience with electric circuits can be
difficult. Aside from the danger of shock, setting up for electricity
experiments can involve managing a lot of small parts, and dealing with
inevitable breakage, making it an expensive unit at a time when most
school budgets are limited.
Computers
make it
possible to simulate electric circuits. While virtual experiments are
(inevitably) one step removed from the real thing, they are vastly
better than no experiments at all.
Educational
software
company Edmark (www.edmark.com)
markets several virtual science kits. Moreover, they make demo
versions of their Virtual Electricity Lab, Kinetics Lab, and
Virtual
Light Lab available; these are more limited than the full versions, and
don't allow students to save their projects. Nevertheless, these free
versions are fun for students to use and can be used for science
experiments that can be completed in a single period.
I am
focussing on using
the demo version of theVirtual Electricity Lab. Mac
(classic
OS) and Windows
versions are available; each is about a 6 MB download.
Students
can explore the
lab-- there is a 'Sci-clopedia' with lots of background information
about electricity, and lots of pre-made circuits to play
with.
Most students quickly become comfortable using the programs small
number of tools to create and modify circuits. Teachers considering
using the program should take some time to explore its interface,
learning how to add and remove components, connect them with (virtual)
wire, etc. Rotating components may take a bit of practise.
The program (including the free demo version)
can also
be used to teach electric-circuit concepts, with teacher-directed
lessons. I print handouts, asking students to write in the answers in
pen or pencil, and discuss the concepts with the class before and after
they carry out the experiments.
Lesson 1: Insulators
and Conductors
Lesson 2: Resistors
Lesson 3: Series and Parallel
Circuits
Lesson 4: Fuses and Schematic
Diagrams
You are welcome to reprint, revise, and use
these
sample lessons with your own classes. I welcome feedback; if you
develop other lessons using Virtual Electricity Lab, I would love to
take a look at them-- and will post them on this site if you like. And
I would love to have other teachers develop lessons using the Virtual
Kinetics or Virtual Light labs.
Note: as the moment
(February 2005), the Virtual Electricity Lab is not available for
download on the Edmark.com website, as far as I can tell. You can download the Windows
version here. (If anyone has a copy of the Mac version they can
make available, please let me know!)
-- az June 17, 2003