A prefix is a word or part of a word that you put "in front" of another word to create a new word or change it's meaning. un means not…. unlikely Learning the meaning of prefixes will help expand your vocabulary.

Prefixes ante….before….anteroom, antedate ante….before….anteroom, antedate ante….before….anteroom, antedate ante….before….anteroom, antedate ante….before….anteroom, antedate

Prefixes il…not…..illegal, illiterate il…not…..illegal, illiterate il…not…..illegal, illiterate il…not…..illegal, illiterate il…not…..illegal, illiterate

Prefixes im……not…..immigrant, impossible im……not…..immigrant, impossible im……not…..immigrant, impossible im……not…..immigrant, impossible im……not…..immigrant, impossible

Prefixes in……not…..inaudible, inactive in……not…..inaudible, inactive in……not…..inaudible, inactive in……not…..inaudible, inactive in……not…..inaudible, inactive

Prefixes ir… not…..irresponsible, irregular ir… not…..irresponsible, irregular ir… not…..irresponsible, irregular ir… not…..irresponsible, irregular ir… not…..irresponsible, irregular

Prefixes inter…….between……intervene, intersection inter…….between……intervene, intersection inter…….between……intervene, intersection inter…….between……intervene, intersection inter…….between……intervene, intersection

Prefixes mis…wrong….miscalculate, misinterpret mis…wrong….miscalculate, misinterpret mis…wrong….miscalculate, misinterpret mis…wrong….miscalculate, misinterpret mis…wrong….miscalculate, misinterpret

Prefixes pre……….before…..preface, prehistoric pre……….before…..preface, prehistoric pre……….before…..preface, prehistoric pre……….before…..preface, prehistoric pre……….before…..preface, prehistoric

Prefixes auto…self….autobiography, automobile auto…self….autobiography, automobile auto…self….autobiography, automobile auto…self….autobiography, automobile auto…self….autobiography, automobile

Prefixes poly…many….polygon, polynomial poly…many….polygon, polynomial poly…many….polygon, polynomial poly…many….polygon, polynomial poly…many….polygon, polynomial

Prefixes post…after…postgraduate, postpone post…after…postgraduate, postpone post…after…postgraduate, postpone post…after…postgraduate, postpone post…after…postgraduate, postpone

Prefixes de…opposite….deactivate, descend de…opposite….deactivate, descend de…opposite….deactivate, descend de…opposite….deactivate, descend de…opposite….deactivate, descend

Prefixes semi……half…..semicircle, semifinal semi……half…..semicircle, semifinal semi……half…..semicircle, semifinal semi……half…..semicircle, semifinal semi……half…..semicircle, semifinal

Prefixes mal…bad…malnutrition, maladjusted mal…bad…malnutrition, maladjusted mal…bad…malnutrition, maladjusted mal…bad…malnutrition, maladjusted mal…bad…malnutrition, maladjusted

Prefixes co…together…cooperate, coincide co…together…cooperate, coincide co…together…cooperate, coincide co…together…cooperate, coincide co…together…cooperate, coincide

Prefixes sub…….under……submarine, sublevel sub…….under……submarine, sublevel sub…….under……submarine, sublevel sub…….under……submarine, sublevel sub…….under……submarine, sublevel

Prefixes pro…forward…progress, proficient pro…forward…progress, proficient pro…forward…progress, proficient pro…forward…progress, proficient pro…forward…progress, proficient

Prefixes trans…across…transportation, transaction trans…across…transportation, transaction trans…across…transportation, transaction trans…across…transportation, transaction trans…across…transportation, transaction

I will divide the room in half. Each team will have 1 person at a time race to the board and write a word that uses the specified prefix. Everyone on the team must take their turn in order of their assigned seats As soon as the person before you sits in his/her seat, you may race to the board No screaming out answers or jumping over desks! Points are awarded for words that use the prefixes correctly The team with the most points at the end of the game wins.

Prefix Pretest: Matching 1. poly 2. mis 3. ante 4. trans 5. pro 6. post 7. trans 8. pre 9. de 10. im 11. sub 12. inter 13. semi 14. co 15. auto 16. mal a. across b. opposite c. before d. self e. under f. between g. wrong h. across i. half j. bad k. together l. not m. before n. forward o. after p. before