teacher guides are
overviews of the lessons. They are designed to be
downloaded and retained as a reference.
provide a lesson-by-lesson summary of topics and objectives,
with suggestions for additional activities you can
do to reinforce each lesson at home or in the classroom.
publications are available in portable document format
(pdf). To read pdf files, you will need Adobe's Acrobat
Reader; if you not have Acrobat Reader, you can download
a free copy from Adobe.