A Mathematical Glossary is included on this web site.  You may print this out.   Students should be given a copy of this glossary for use with any of the lessons in Chapters 2 through 6.  Words introduced in boldface in the teacher's section or in the student readings will be defined in the glossary.  As you present each lesson, explain (or have students explain) each relevant glossary term that is likely to be new at the student's grade level.