Most Lesson modules are comprised of a Powerpoint Presentation 2003 
, also available in Flash 
, and Learning Activities 
in pdf format. Some lessons also include a Assembly Plan 
. Powerpoint Presentation 2000 
should only be used when the more recent version is not installed on your computer, as some functionality will be lost.
, also available in Flash , and Learning Activities in pdf format. Some lessons also include a Assembly Plan . Powerpoint Presentation 2000 should only be used when the more recent version is not installed on your computer, as some functionality will be lost.
