1. prefix- An affix attached before a base word or root, as in re- in reprint.
suffix- An affix attached to the end of a base, root, or stem that changes the meaning or grammatical function of a word, as –en added to form oxen.
Academic Content Standards, Ohio Department of Education, pages 306-7

2. AV 6-6 Apply the knowledge of prefixes, suffixes, and roots and their various inflections to analyze the meanings of words.
We are learning to use prefixes, suffixes, roots to understand the meaning of a word. We are looking for how the beginning, ending, base or root of a word (prefix)(suffix)(root) can help us know what a word means.

3. AV 6-6 Apply the knowledge of prefixes, suffixes, and roots and their various inflections to analyze the meanings of words.
SUFFIXES are those word parts that COME AT THE END of the WORD. Sometimes a suffix will tell you what part of speech a word is. ie, many adverbs end in –ly. Study suffixes carefully!
-able, -ible [able, can do] edible, agreeable, visible
-age [act of, collection of] salvage, storage, forage
-al [relating to] industrial, manual, natural, gradual
-ant [performing, agent] assistant, servant

4. -cide [kill] homicide, pesticide, genocide
AV 6-6 Apply the knowledge of prefixes, suffixes, and roots and their various inflections to analyze the meanings of words.
SUFFIXES are those word parts that COME AT THE END of the WORD. Sometimes a suffix will tell you what part of speech a word is. ie, many adverbs end in –ly. Study suffixes carefully!
-ar, -er, -or [one who, that which] doctor, baker, miller, teacher, racer, amplifier
-ary, -ery, -ory [relating to, quality, place where] dictionary, dietary, bakery, dormitory, bravery
-cian [having a skill or art] musician, beautician, magician, physician
-cide [kill] homicide, pesticide, genocide
-ic [nature of, like] metallic, heroic, poetic, acidic

5. -less [without] artless, fearless, hopeless, helpless
AV 6-6 Apply the knowledge of prefixes, suffixes, and roots and their various inflections to analyze the meanings of words.
SUFFIXES are those word parts that COME AT THE END of the WORD. Sometimes a suffix will tell you what part of speech a word is. ie, many adverbs end in –ly. Study suffixes carefully!
-ion, -sion, -tion [act of, state of] action, injection, infection, tension, extension
-less [without] artless, fearless, hopeless, helpless
-ly [like, manner of] carelessly, hopelessly, truly
-ology [study of] biology, anthropology, theology, ornithology, neurology, geology
-ward [direction] forward, backward, westward

6. VIS IBLE IN IN VIS IBLE Word Math--- vis [La-to look or see]
AV 6-6 Apply the knowledge of prefixes, suffixes, and roots and their various inflections to analyze the meanings of words.
Word Math---
vis [La-to look or see]
il,ir,in,im [not]
able, ible [capable or worthy of]
VIS
IBLE IN IN
VIS
IBLE

7. HYPO DERM IC Word Math--- derm [skin] hypo [under]
AV 6-6 Apply the knowledge of prefixes, suffixes, and roots and their various inflections to analyze the meanings of words.
Word Math---
derm [skin]
hypo [under]
ic [nature of, like]
HYPO
DERM IC

8. Suffixes
Guidelines:
A suffix is a letter, or group of letters, that is added to the end of a root (base) word. The most common suffixes are -s, -ed, -ing, -ly, and -tion.
Let’s see…

9. #1. -s, -es 31% Used to make plural nouns.
school- schools
baby- babies
fraction- fractions
flute- flutes

10. She wraps the gift. She wrapped the gift.
#2. -ed 20% used to make
past-tense verbs
Today, I listen to my iPod.
Yesterday, I listened to my iPod.
I bake a cake. I baked a cake.
She wraps the gift. She wrapped the gift.

11. #3. -ing 14% verb form/present participle
They run. They are running.
They were running.
They have been running.
They will have been running.
He slides. He is sliding.
He was sliding.
He has been sliding.

12. #4. -ly 7% characteristic of (adverb).
ran how? - ran quickly adverb
arrived how? arrived promptly adverb
floated downstream how? floated downstream lazily adverb
quick-quickly prompt-promptly lazy-lazily

13. one who does, or is connected with…
#5. -er, -or 4%
one who does, or is connected with…
One who does law.
lawyer
He prospects for gold.
prospector
She bakes cakes.
baker
He wraps gifts.
wrapper
She leads the orchestra.
conductor
leader

14. #5. -ion, -tion, -ation, -ition 4% act, process
evaporate
evaporation
condense
condensation
institute
institution
admonish
admonition
tense
tension

15. -s, -es 31%
-ed 20%
-ing 14%
-ly %
-er, -or %
-ion, -tion,
-ation, -ition 4%
80%

16. -s, -es 31%
-ed 20%
-ing 14%
-ly %
-er, -or %
-ion, -tion,
-ation, -ition %
80%
I hope you have noticed how suffixes are added to roots—there are three common transitions from the root form. Aye, but that’s a word study lesson or two me lads and lassies!!! Get yourselves ready for groups… snack if you’re not at the blue table!

17. Use your WRITE SOURCE 2000: PREFIXES—pages 329-330 SUFFIXES—page 331
AV 6-6 Apply the knowledge of prefixes, suffixes, and roots and their various inflections to analyze the meanings of words.
Use your WRITE SOURCE 2000:
PREFIXES—pages
SUFFIXES—page 331
ROOTS—pages