Select and write 1 sentence using at least ONE prefix word from today's station tasks:
Write student sentence here...
DAY 5: Assessment Day Final Confidence Check & Debrief
Warm-Up: Rapid Match (5 min)
• un- :
• pre- :
• re- :
• mis- :
• dis- :
• non- :
Exit Ticket: Debrief (5 min)
Which prefix was easiest? Which was trickiest?
Easiest:
Trickiest:
| Prefix | Meaning | Example Base Word | Mastery Level (1-3 ⭐) |
|---|---|---|---|
| un- | not, opposite of | unbelievable | ⭐ ⭐ ⭐ |
| re- | again, back | reexamine | ⭐ ⭐ ⭐ |
| dis- | not, opposite, apart | disconnect | ⭐ ⭐ ⭐ |
| pre- | before, in advance | prehistoric | ⭐ ⭐ ⭐ |
| mis- | wrong, badly | miscalculate | ⭐ ⭐ ⭐ |
| non- | not, without | nonessential | ⭐ ⭐ ⭐ |
Prefix Codebreaker Review System • Page 2 of 2 • Weekly Check-In Record
The young paleontologists gathered for a preliminary briefing before digging in the desert canyon. They had taken every precaution to protect the fragile prehistoric specimens. However, a sudden sandstorm caused tools to disappear under the dunes, creating a severe disadvantage for the field team.
1. What does taking a precaution mean in this excavation?
2. How did the storm put the researchers at a disadvantage?
Fill in each blank with: predetermined, disrespect, premature, disconnect
1. Leaving the computer running without saving caused the server to __________________.
2. Celebrating the victory before the game ended was __________________.
3. Showing __________________ to your peers will not be tolerated in the lab.
4. The scientists followed a __________________ route mapped out weeks earlier.
Prefix Codebreaker Practice Packet • Page 2 of 4 • dis- & pre-
MISSION 3 • DAY 3
Name:
Date:
Isolate the prefix (mis- = wrong/badly; non- = not/without) and define each word.
| Target Word | Prefix | Base Word | New Meaning |
|---|---|---|---|
| miscalculate | mis- | calculate | to compute incorrectly or judge poorly |
| nonessential | non- | ||
| misinterpret | |||
| nonrenewable |
During the chemistry lab, Marcus had a total misunderstanding about the chemical proportions. He misjudged the amount of vinegar required, creating a sticky volcano. Fortunately, the liquids used were entirely nontoxic and nonflammable. His lab partner called the spilled mess pure nonsense, but both agreed to clean the station without delay.
1. Explain why the materials being nontoxic was crucial during the spill:
2. Contrast how Marcus misjudged the recipe versus simply leaving out an ingredient:
Rewrite the sentence by replacing the incorrect prefix word with the accurate one:
Faulty Sentence: "The author wrote a fantastic book of mis-fiction about outer space."
Corrected Sentence:
Prefix Codebreaker Practice Packet • Page 3 of 4 • mis- & non-
MISSION 4 • DAY 4
Name:
Date:
Attach the specified prefix to the base word, then write a short definition.
1. un- + predictable = unpredictable
Meaning: not able to be predicted
2. re- + discover =
Meaning:
3. dis- + approve =
Meaning:
4. pre- + view =
Meaning:
5. mis- + understand =
Meaning:
6. non- + fiction =
Meaning:
Maya unlocked the unopened safe after realizing her previous attempts were based on a misinterpretation of the blueprint. As a precaution, she wore nonconductive gloves to avoid electric shocks. She had to disconnect the secondary alarm circuit and reprogram the digital passcode. Her focus was unwavering; failure was simply non-negotiable.
1. Name the prefix in non-negotiable and its meaning:
2. What base word is inside misinterpretation?
Write a 2-sentence mini-story using at least TWO different prefixes (un-, re-, dis-, pre-, mis-, non-):
Prefix Codebreaker Practice Packet • Page 4 of 4 • Cumulative Review
Record choice on sheet
CARD 10 Prefix dis-
Word Math:
dis- + advantage = ?
Write the word and give one antonym.
Record answer on sheet
CARD 11 Word Surgery
Which base word pairs correctly with pre-?
A. arrange
B. liquid
C. apple
D. grass
Record letter & new word
CARD 12 Sentence Doctor
Fix the error in this sentence:
"The two puzzle pieces did not predisconnect properly."
Which prefix word belongs here instead?
Write corrected word
Prefix Detective Station Cards • Cards 7–12 • Upper Elementary Review
STATION CARDS
Cut along dotted lines
CARD 13 Prefix mis-
If you miscalculate a math problem, what happened?
A. You solved it perfectly.
B. You calculated it incorrectly.
C. You decided not to solve it.
Record choice on sheet
CARD 14 Prefix non-
What does nonessential mean?
Explain the difference between essential groceries vs. nonessential purchases.
Record definition on sheet
CARD 15 Prefix mis-
Fill in the missing word:
"The witness was worried police might ________ her statement."
Choose: misunderstand or nonexistent
Record choice on sheet
CARD 16 Prefix non-
Word Math:
non- + fiction = ?
Give one example of a nonfiction book topic.
Record word & topic
CARD 17 Comparison
Contrast these two words:
1. misinformed
2. nonverbal
How do their prefixes change the base words differently?
Record short comparison
CARD 18 Context Clue
"Because the paint was completely nontoxic, the art teacher allowed students to use their fingers."
What does nontoxic mean here?
Record definition on sheet
Prefix Detective Station Cards • Cards 13–18 • Upper Elementary Review
STATION CARDS
Cut along dotted lines
CARD 19 Multi-Prefix Match
Match the prefix with its core definition:
1. pre- A. wrong / badly
2. mis- B. before
3. re- C. again / back
Record letter pairs
CARD 20 Word Surgery
Break down the word:
disorganization
List: Prefix + Base Word
Record breakdown on sheet
CARD 21 Context Clue
"The ticket had a strict nonrefundable policy, meaning no cash returns."
What prefix is used and what is its role?
Record response on sheet
CARD 22 Morphology Matrix
Add two DIFFERENT prefixes to the base word view to make two real words:
1. ______view 2. ______view
Record both words
CARD 23 Sentence Repair
Replace the underline with the correct prefix word:
"He was unresponsible with the lab gear."
Should it be irresponsible, disobedient, or misplaced?
Record answer on sheet
CARD 24 Super Codebreaker
Write 1 sentence containing BOTH a pre- word AND a re- word.
Example: We previewed the film before replaying it.
Record your sentence
Prefix Detective Station Cards • Cards 19–24 • Upper Elementary Review
STUDENT RECORDING LOG
Name:
Date:
Card 1:
Card 2:
Card 3:
Card 4:
Card 5:
Card 6:
Card 7:
Card 8:
Card 9:
Card 10:
Card 11:
Card 12:
Card 13:
Card 14:
Card 15:
Card 16:
Card 17:
Card 18:
Card 19:
Card 20:
Card 21:
Card 22:
Card 23:
Card 24:
Detective Station Score: _______ / 24 correct
Partner / Station Lead Signature:
Prefix Detective Station Cards • Student Recording Log Sheet • Page 5 of 5
13. Why was a preliminary inspection necessary before the dive? Explain using prefix meaning.
14. How did the prefix in nonfunctional explain the condition of the replaced cables?
15. What occurred when the sonar computer misread the pressure levels?
16. Write an original sentence using the word disadvantage that demonstrates you understand its meaning:
17. Write an original sentence using the word reconsider in proper context:
18. Error Surgery: Find and correct the prefix error in this sentence:
"The scientist made a huge discalculation when adding the chemicals."
Corrected word: Why?
Prefix Mastery Assessment • Page 2 of 2 • Morphology Review Complete
TEACHER KEY
Full Solutions
Mission 1 (un- & re-):
• reconstruct: re- + construct (build again)
• unforgettable: un- + forgettable (not able to be forgotten)
• reconsider: re- + consider (think over again)
• Reading Q1: Never done or known before.
• Reading Q2: To avoid hazardous ice crevasses and pick a safer path.
Mission 2 (dis- & pre-):
• disadvantage: dis- + advantage (unfavorable state)
• precautionary: pre- + cautionary (done in advance for safety)
• disorganized: dis- + organized (messy, lacking order)
• Cloze: 1. disconnect, 2. premature, 3. disrespect, 4. predetermined.
Mission 3 (mis- & non-):
• nonessential: non- + essential (not necessary)
• misinterpret: mis- + interpret (understand incorrectly)
• nonrenewable: non- + renewable (cannot be regenerated)
• Reading Q1: Nontoxic meant the spill was safe and non-poisonous.
• Error surgery: Change mis-fiction to nonfiction.
Mission 4 (Cumulative):
• 2. rediscover (find again), 3. disapprove (not agree with), 4. preview (look before), 5. misunderstand (get wrong), 6. nonfiction (true writing).
• Story Q1: non- (not), meaning impossible to negotiate.
• Story Q2: Base word is interpret.
Card 1: B (question / certain)
Card 2: reconstruct
Card 3: B (knocked-out)
Card 4: reevaluate (judge again)
Card 5: B (uncle: root word)
Card 6: believable / credible
Card 7: C (before history)
Card 8: chaotic and unruly
Card 9: precautionary
Card 10: disadvantage (ant: benefit)
Card 11: A (prearrange)
Card 12: disconnect / connect
Card 13: B (calculated wrongly)
Card 14: not necessary for survival
Card 15: misunderstand
Card 16: nonfiction (biography, history)
Card 17: mis- = wrong; non- = without
Card 18: not poisonous or harmful
Card 19: 1-B, 2-A, 3-C
Card 20: dis- + organization
Card 21: non- (cannot be refunded)
Card 22: preview, review
Card 23: irresponsible / careless
Card 24: Sentences with pre- & re-
Prefix Codebreaker Teacher Guide • Page 2 of 3 • Practice & Task Card Master Key
ASSESSMENT KEY & RUBRIC
30-Point Final Key
Part 1 (6 pts): 1-D (un-), 2-A (re-), 3-F (dis-), 4-E (pre-), 5-B (mis-), 6-C (non-).
Part 2 (6 pts): 7. pre- + historic; 8. mis- + calculate; 9. re- + construct.
Part 3 (6 pts): 10. B (unpredictable); 11. C (not able to be returned); 12. B (understood wrongly).
Part 4 (6 pts):
• 13. Done beforehand (pre-) to detect issues early.
• 14. non- indicates cables were completely not working.
• 15. The computer read the depth/pressure numbers incorrectly.
Part 5 (6 pts): 16-17. Sentences scored per rubric. 18. Correct: miscalculation (meaning wrong math, not separate).
| Level | Score Range | Demonstrated Proficiency |
|---|---|---|
| Level 4: Advanced | 28–30 pts (93–100%) | Flawlessly dissects multi-syllable words; articulates precise nuance in complex reading texts. |
| Level 3: Proficient | 24–27 pts (80–90%) | Mastery of all 6 prefixes; successfully identifies base roots and applies in sentence context. |
| Level 2: Developing | 20–23 pts (67–77%) | Inconsistent with mis- vs. non- or identifying true base words; benefits from root isolating drills. |
| Level 1: Intervention | < 20 pts (< 67%) | Requires targeted small-group re-teaching using color-coded tactile prefix cards. |
For Emerging / ELL Learners:
Provide the visual Prefix Anchor Card during task stations. Pre-highlight the base word in reading passages.
For Advanced / Extension:
Challenge students to research dual-affix words (e.g., unpredictability, reconstruction) and trace Latin/Greek origins.
Prefix Codebreaker Teacher Guide • Page 3 of 3 • Assessment Rubric & Differentiation
