Identify Words with Prefixes (un-, re-, pre-, dis-)

On Iqleel, third-grade students will investigate how the prefixes un-, re-, pre-, and dis- change the meaning of a root word. They will learn that 'un-' means 'not' (as in 'unhappy'), 're-' means 'again' (as in 'reread'), 'pre-' means 'before' (as in 'preview'), and 'dis-' means 'not' or 'opposite of' (as in 'disagree'). This skill helps them use these prefixes as clues to unlock the meaning of unfamiliar words. This is a very powerful vocabulary-building skill that improves reading comprehension by allowing students to perform word analysis on new words they encounter.

• Phonics & Word Skills
• Vocabulary
• Vocabulary Development
• Prefixes and Suffixes
• Word Roots
• Word Meaning
• Decoding
• Affixes
• Word Structure
• Base Words
• Root Words
• Word Analysis

• 3RF3a
• RF.3.3.a — Identify and know the meaning of the most common prefixes and derivational suffixes.
• ELA.3.2.A.v

• Match a Word to Its Synonym
• Identify Root Words and Prefixes (un-, re-, pre-, dis-)

• Identify Words with Suffixes (-ful, -less, -ly)

• Use Words in Sentences with Prefixes (un-, re-, pre-, dis-)