What are Prefixes?

What are Prefixes?

5th Grade

Teacher: Mrs. Goytia

A prefix is a word part added at the beginning of a word, that changes its meaning.

Prefix un-

• Meaning: not

• Example:

• Root Word: tie

• New word: untie- not tied

Prefix Ir-

Meaning: Not

Base Word: responsible

New Word: irresponsible- not responsible

Prefix Il-

The prefix il- means "not"

Base Word: legal

New word: illegal not legal

Prefix Im-

The prefix im- means "not"

Base Word: possible

New word: impossible not posible

Prefix In-

The prefix in- means "not" or "the opposite of"

Base Word: visible

New Word: invisible not able to be seen

Prefix mis-

The prefix mis- means "not" or "wrong"

Base Word: behave

New Word: misbehave behave wrongly

Prefix Dis-

The prefix dis- means "not, negative or opposite"

Base Word: agreed

New Word: disagreed did not agreed

Multiple Choice

Angel was unprepared for the test.

What is the meaning of the underlined word in this sentence?

• prepared before

• well prepared

• badly prepared

• not prepared

Multiple Choice

•The prefix MIS- means “wrong”, so when you misbehave, you:

• establish the rules

• follow the rules

• behave in the wrong way

• create new rules

Multiple Choice

•Choose the letter of the word that best matches the meaning of the prefix dis- Example: disconnect

• again

• not

• more

• less

Multiple Choice

•Choose the letter of the word that best matches the meaning of the prefix mis- Example: misplace

• before

• new

• again

• bad

Multiple Choice

•Choose the letter of the word that best matches the meaning of the prefix un- Example: unemployed

• new

• down

• again

• not

Multiple Choice

•If you are able to climb a tree, you can do it. What does unable mean?

• you can do it

• you cannot do it

• you can do it again

• you will do it

Multiple Choice

Erica was asked to spell the word cat. She spelled it k-a-t. Erica misspelled the word. The the word misspelled means:

• Spelled it right

• Spelled it wrong

• did not spelled

• Spelled it below

Multiple Choice

1. It is irresponsible to use your cellphone while you are driving.

• responsible

• able to be responsible

• not being responsible

• wrongly responsible

Multiple Choice

“What if I mispronounce the word?” she worried.

What is the meaning of the underlined word in this sentence?

• try to pronounce

• pronounce correctly

• pronounce incorrectly

• pronounce again