Here is a presentation on different prefixes and suffixes useful for teaching 8th std textbooks activities.

1. Prefixes and
Suffixes

2. Prefixes and suffixes are sets of letters that are added to the beginning or end
of another word.They are not words in their own right and cannot stand on
their own in a sentence: if they are printed on their own they have
a hyphen before or after them.

3. Prefixes
Prefixes are added to the beginning of an existing word in order to create a
new word with a different meaning.

4. Words that form with prefix - UN are given below:

5. UNLOAD
UNRECOGNISED
UNHAPPY
UNDRESS
UNCOUNTABLE
UNFORTUNATE

6. DIS-

7. DISHONEST
DISGRACE
DISTASTE
DISLOCATE
DISAGREE
DISAPPEAR

8. IN-

9. INDEFINITE
INJUSTICE
INVISIBLE
INACTIVE
INAPPROPRIATE
INSUFFICIENT

10. RE-

11. REASSURING
REAPPEAR
RELEARN
REVALUE
RECONSIDER
REWIND

12. Suffixes
Suffixes are added to the end of an existing word.

13. Words that form with suffix ER- are given below:

14. WORKER
ACCORDER
FORMER
UNLINKER
SPACER

15. -able

16. CAPABLE
BELIEVABLE
AGREEABLE
ADORABLE
ADORABLE

17. -leSS

18. CARELESS
DOUBTLESS
ENDLESS
FEARLESS
HOMELESS

19. THANKYOU