3rd Grade · Week 1 of 36 · English
Prefixes un-/re-
1. Hook
- Hear the goal. Watch one worked example (pictures + steps).
- Try the interactive lab on this page. Move something. Read what happened.
- Guided fills, then independent practice, then the scored quiz.
- Teach it back: one example + the usual mistake.
There is no classroom teacher. This page teaches you. The lab is on this site — not an outside classroom. Stay on this page. The pictures, the game, and Your work are the lesson.
Add two letters to the front of a word and the meaning flips or repeats. Meet un- and re-.
Then: lab → guided → quiz → teach it back. The lab is the lesson, not a decoration.
2. Teach
Determine the meaning of words with prefixes un- (not) and re- (again) (CCSS L.3.4b, RF.3.3a).
Standards alignment: CCSS.ELA-LITERACY.L.3 (domain-level; works with any state’s standards)
A line you can point to is evidence. This week's job: Prefixes un-/re-.
- A prefix is a word part added to the beginning of a base word.
- un- means "not" or "the opposite of": unhappy = not happy, unlock = opposite of lock.
- re- means "again" or "back": redo = do again, reread = read again, return = turn back.
Base word + prefix = new word: un + kind = unkind; re + fill = refill.
Story: Max was unhappy. His tower fell, so he had to rebuild it. He was not unkind to his sister, who bumped it. He reread the plan, refilled his block bin, and untied the knot in his string. The new tower was unbeatable!
- Word: rebuild.
- Find the prefix: re-.
- Base word: build.
- re- means again.
- Rebuild = build again.
Read the story. List every un- and re- word and write its meaning.
Thinking every word starting with "re" has the prefix (read, real). Check for a real base word.
Instructions say "reheat," "unplug," "reuse."
No classroom teacher today — this page is the lesson. A grown-up sits nearby. Model once, wait 10–20 seconds, then prompt. A grown-up sits nearby. Model once, wait, then let the child try.
See it · try it (interactive lab)
Do this lab on Life Academy. Move something. Read what changed — then quiz.
Your work — type it here
Read the passage on this page. Then type your answers. Save when you are done.
3. Guided practice
Try these with me — type the missing word, then check.
Reveal the thinking
Prefix + base word = new meaning.
4. Independent practice
Work the set. Check when finished — this is practice (mastery quiz is next).
5. Mastery check
Scored quiz — results save to your gradebook.
Reading and writing on this page
Grades 3–5 English is reading, grammar, and short writing. MLA research papers start in high school — not today. Focus: Prefixes un-/re-.
Classroom · Gradebook · Transcripts
Stay on this page. The studio, the lab, pictures, and Your work are the lesson.
6. Reflection / teach-back
Teach-back: Explain Prefixes un-/re- in your own words. Give one example and name the usual mistake.