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Prefix and Suffix (Primary 6)








TOPIC: Prefix and Suffix


A prefix is a group of letters placed before a word. A suffix is a group of letters placed after a word. Prefix and suffix change the original meaning of the word. For example – Happy. Prefix – unhappy. Suffix – happily.



  • By the end of the lesson, the pupils should have attained the following objectives (cognitive, affective and psychomotor) and be able to:
  1. identify prefix and suffix;
  2. use prefix and suffix in making sentences.






  • The teacher will teach the lesson with the aid of:
  1. Course book
  2. Real objects
  3. Pictures



  1. Scheme of Work
  2. 9 – Years Basic Education Curriculum
  3. Course Books
  4. Learngrammar
  5. All Relevant Materials
  6. Online Materials


Related posts: nouns, pronouns, verbs, adjectives, adverbs. Scheme of work – first termsecond termthird term. Seventh week lesson outline









  • De means from, down, away, reverse, opposite… Examples are decrease, devalue, dethrone, detain, de-emphasis, decode, deactivate, etc.


  • Dis means not, opposite, reverse, away... Examples are discover, discourage, disconnect, disagree, discontinue, disappear, disregard, disrespect, etc.


  • Ex means out of, away from, lacking, former… Examples are exhale, exchange, ex-president, explosion, export, express, extention, etc.


  • Il means not. Examples are illegal, illiterate, illogical, etc.


  • Im means not, without. Examples are impossible, illicit improper, illuminate, informal, etc.


  • In means not, without. Examples are inspire, indolent, inaction, inaccurate, invisible, ingrate ingratitude, etc.


  • Mis means bad, wrong. Examples are misinformation, mismanagement, misunderstanding, mislead, mistake, misconduct, misconception, misplace, etc.


  • Non means not. Examples are nonfiction, nonsense, nonetheless, nonsense,


  • Re means again, back. Examples are reassure, replay, restart, refresh, react, reformat, reboot, reappear, etc.


  • Un means against, not, opposite. Examples are unnecessary, unless, undo, untrue, unknown, unbeatable, unbelief, unequal, uncertain, unusual, unrest, unrelated, unreasonable, etc.





  • able means able to, having the quality of. Examples are reasonable, comfortable, agreeable, portable, adorable, believable, fashionable, etc.


  • al mean relating to. Examples are annual, professional, alphabetical, mathematical, etc.


  • er means comparative. Examples are smaller, sooner, thinner, ticker, brighter, bigger, stranger, stronger, etc.


  • est means superlative. Examples are smallest, biggest, strongest, brightest, tiniest, prettiest, laziest, etc.


  • ful means full of. Examples are grateful, beautiful, powerful, colourful, peaceful, faithful, disregardful, meaningful, truthful, etc.


  • ing denoting an action, a material, or a gerund. Examples are going, singing, clapping, running, acting, coming, showing, etc.


  • less means without, not affected by. Examples are speechless, friendless, heartless, senseless, tireless, nameless, spotless, etc.


  • ly forming an adjective. Examples are lovely, clearly, honestly, hourly, daily, weekly, monthly, annually, etc.


  • ness denoting a state or condition. Examples are goodness, kindness, bitterness, carelessness, wilderness, etc.



Exercises 1 – Fill in the prefixes (dis, im, re, il, pre, un) and suffixes (ful, able, al, ly, y, ion)

  1. _____ like _____
  2. _____ cover _____
  3. _____ success _____
  4. _____ logic _____
  5. _____ act _____
  6. _____ predict _____
  7. _____ luck _____
  8. _____ new _____
  9. _____ reason _____
  10. _____ trust _____
  11. _____ equal _____
  12. _____ proper _____
  13. _____ order _____
  14. _____ connect _____


Exercises 2 – Put the words in brackets in the appropriate form (use a prefixes or a suffixes):


  1. Tosin looked _______________________. He started to cry. (happy)
  2. Chichi passed his exam. She was _______________________ for the second time. (succeed)
  3. Segun wants to be a _______________________ when he grows up. (mathematics)
  4. The road was too narrow, so they had to _______________________ it. (wide)
  5. Ade was acting in a very _______________________ way. (child).




  • To deliver the lesson, the teacher adopts the following steps:
  1. To introduce the lesson, the teacher revises the previous lesson. Based on this, he/she asks the pupils some questions;
  2. Explains prefix and suffix;
  3. Guides pupils to identify prefix and suffix;
  4. Pupil’s Activities – Identify prefix and suffix.
  5. Guides pupils to use prefix and suffix in sentences;
  6. Pupil’s Activities – Use prefix and suffix in making sentences




  • To conclude the lesson for the week, the teacher revises the entire lesson and links it to the following week’s lesson – Exclamations and Interjections



Pupil to:

  1. identify prefix and suffix in sentences;
  2. make correct use of prefix and suffix.