RED 6846:

2.  What is a morpheme?
 The smallest unit of meaning

3. Types
 Free morphemes=root word
 Bound morphemes=affixes

4. Affixes
 Prefixes  Suffixes
 At the beginning of a  At the end of a word
word

5. Family Tree

6. Root and Branches Web

8. Websites
http://www.manythings.org/wbg/prefixes-jw.html
http://www.vocabulary.co.il/prefixes/high-school/divide-the-prefix/
http://www.vocabulary.co.il/prefixes/high-school/hs-prefix-meaning-match/
http://www.tv411.org/lessons/cfm/vocabulary.cfm?str=vocabulary&num=1
&act=4&que=1
http://www.tv411.org/lessons/cfm/vocabulary.cfm?str=vocabulary&num=10&
act=2&que=1