Prairie River Academy

English Language Arts

Grade 3Unit 1Lesson 3

Word structure and spelling

Use Prefixes to Adjust Meaning

Today: Explain how common prefixes change a base word.

A

Begin

Warm-up

  1. 1.What does re- mean in replay?

  2. 2.What does un- mean in unsafe?

B

Learn

Use Prefixes to Adjust Meaning

A prefix attaches before a base. It changes meaning while leaving the base idea recognizable.

Box the base, circle the prefix, state each meaning, and combine them.

Study the model

un + lock → not locked; re + read → read again

C

Read

Original PRA passage

Mara reread the note because she had misunderstood the final line.
ELA-3-01-03-01Original Prairie River Academy curriculumELA-3-01-03-01

Prairie River Academy

Use Prefixes to Adjust Meaning

Grade 3Practice and apply
D

Practice

Read, think, and respond

  1. 1.Explain reread. ELA-3-01-03-Q1

  2. 2.Explain misunderstood. ELA-3-01-03-Q2

  3. 3.Build a word meaning not kind. ELA-3-01-03-Q3

  4. 4.Why did Mara reread? ELA-3-01-03-Q4

E

Apply

Use the lesson

Use re-, un-, or mis- to build three words and define them.

ELA-3-01-03-02Original Prairie River Academy curriculumELA-3-01-03-02