Prefix Un Slides UFLI Lesson 103 Morphology & Word Study
New Concept
Prefix un-
Unlock New Meanings
Learn how adding un- changes base words to mean "not" or "the opposite of an action."
1. Learn Meaning
un- = not / opposite
2. Build & Blend
Read multisyllabic words
3. Apply & Read
Fluent decodable stories
Step 1
Morpheme Warm-Up: Add the Prefix
Say the base, add /ŭn/
Meaning: NOT
kind → un·kind
safe → un·safe
fair → un·fair
Meaning: REVERSE / OPPOSITE ACTION
lock → un·lock
pack → un·pack
zip → un·zip
Teacher Prompt: "If I say 'wrap', what is the opposite action?" Students: "UNWRAP!"
Step 2
Concept Anchor: What is a Prefix?
Prefix Rule
un- prefix
A prefix is a word part added to the BEGINNING of a base word.
It changes the meaning of the word. A prefix cannot stand alone!
Definition 1
Means "NOT"
When added to adjectives:
Definition 2
Means "REVERSE"
When added to action verbs:
Prefix Rule: Prefix + Base Word = New Meaning
Step 3
Word Building: Morphology Equations
Prefix + Base Word
un-
+ lock
= unlock
to open what was locked
un-
+ fair
= unfair
not fair; not just
un-
+ fold
= unfold
to open what was folded
un-
+ lucky
= unlucky
not lucky; having bad luck
Spot the base word first! Cover un- with your finger, read the base, then read the whole word.
Step 4
Blending Board: Real & Nonsense Words
Read Across
Real Word
un·safe
Real Word
un·pack
Nonsense Word
un·blen
Real Word
un·seen
Nonsense Word
un·fip
Real Word
un·plug
Nonsense Word
un·zest
Real Word
un·rest
Nonsense Word
un·skag
Look at the vowel in the base word Nonsense words prove you are using phonics rules!
Step 5
Sentence Reading Practice
Read with Smooth Expression
1
Please help me unpack the heavy camping bags.
Base word: pack | Meaning: take things out
2
It is unsafe to jump into the dark, rocky lake.
Base word: safe | Meaning: not safe / dangerous
3
Can you unlock the front gate with the brass key?
Base word: lock | Meaning: open the lock
Fluency Goal: Scoop words into phrases, not word-by-word robot reading! Scoop • Pause • Flow
Step 6
Ready for Reading & Assessment
Independent & Small Group
3 Decodable Passages
Read long decodable stories packed with un- target words.
Passages Trio
Fluency Reader
Timed read tracker + 5 multiple choice comprehension questions.
Cold & Hot Reads
10-Word Verbal Check
Exit ticket testing 6 real words and 4 nonsense words with un-.
Quick Assessment
Remember: Prefix un- means NOT or REVERSE!
Prefix Un Decodables UFLI Lesson 103 • Decodable Passage 1
The Unlucky Camping Trip
Name:
Date:
un Target Word Spotlight:
unlucky unpacked unzipped unsafe unhappy untangled
Tim felt like the most unlucky kid in the woods. When he and his dad set up camp by Pine Creek, heavy gray clouds rolled across the sky. The steep trail was muddy and unsafe for hiking, so they had to turn back early.
At the camp spot, the long tent ropes were twisted into tight knots. Tim worked patiently until he untangled every single line. Next, Dad unpacked the big green trunk and pulled out dry woolen blankets. Rain began to splash down, but Tim unzipped the tent flap quickly so they could jump inside.
Inside the shelter, it was warm and dry. Dad lit a small lantern and heated cups of sweet cider. Tim was no longer unhappy about the storm. What began as an unlucky day had turned into the best camping trip ever.
Fluency Practice Tracker:
Read 1 (Accuracy) Read 2 (Pacing) Read 3 (Expression)
Passage Check • Prefix Focus
1. Why did Tim feel unlucky at first, and how did his feelings change?
2. Morphology: Write the base word of untangled. What action does the prefix un- show?
UFLI Lesson 103 • Decodable Passage 2
The Mystery of the Unlocked Chest
Name:
Date:
un Target Word Spotlight:
unlocked uncover unwrap unknown unseen unbroken
On a rainy Saturday, Jen and Max climbed up the wooden stairs into the attic. Dusty sunlight shone on old wooden boxes that had rested unseen for many years. In the back corner sat an iron trunk. Max touched the brass latch and gasped. The trunk was left unlocked!
"Let us lift the heavy lid and uncover what is inside," whispered Jen. They slowly pulled back a faded quilt to find an unknown parcel tied with golden twine. Jen helped unwrap the soft cloth to see what treasure lay hidden.
Inside sat an unbroken crystal prism that cast rainbows across the floor. Beneath it was Grandfather’s old compass, still pointing north. The children were thrilled to solve the mystery of the unlocked chest and bring the forgotten treasures back into the light.
Fluency Practice Tracker:
Read 1 (Accuracy) Read 2 (Pacing) Read 3 (Expression)
Passage Check • Prefix Focus
1. What two treasures did the children find after they did unwrap the parcel?
2. Morphology: If unbroken means "not broken," what does unseen mean?
UFLI Lesson 103 • Decodable Passage 3
An Unselfish Teammate
Name:
Date:
un Target Word Spotlight:
Prefix Un Fluency Reader UFLI Lesson 103 • Fluency Decodable Reader
The Mystery of the Unseen Box
Student Name:
Date:
Timed Fluency Read: 1-Minute Timing Read accurately with expression. Prefix un- = not / reverse.
When Aunt Clara bought the old seaside cabin, it seemed untidy and forgotten.
12
Dust coated the wooden floorboards, and the tall front gate was locked tight.
25
Leo and Nora were eager to unlock the latch and unpack their gear inside.
38
As they dusted the pantry, Leo spotted a wooden hatch that sat unseen beneath a rug.
53
It looked unsafe to step on, but Nora knelt down and unsealed the metal ring.
67
Inside rested a carved cedar box with an unexpected brass clasp holding it shut.
80
"Is it unfair to open it without Aunt Clara?" Nora wondered out loud.
92
Leo ran to fetch her, and together they gently began to unwrap the twine.
106
Inside lay unbroken sea glass, an old brass bell, and a handwritten map.
119
Aunt Clara smiled warmly, no longer feeling unhappy about the long chores.
131
They sat by the hearth to unfold the map and plan their next beach quest.
146
Fluency Reading Tracker • Words Correct Per Minute (WCPM) Formula: Total Words Read - Errors = WCPM
Cold Read
Words:
Errors:
WCPM:
Practice Read 1
Words:
Errors:
WCPM:
Practice Read 2
Words:
Errors:
WCPM:
Hot Read (Final)
Words:
Errors:
WCPM:
UFLI Lesson 103 • Comprehension Check
Comprehension Questions
Passage: The Mystery of the Unseen Box
Directions: Read each question carefully. Fill in the bubble next to the best answer choice.
1. What did Leo spot hidden beneath the rug in the pantry?
A A silver chest sitting on a high wooden shelf
B A wooden hatch that had rested unseen
C A locked iron key under the kitchen sink
D A pile of old blankets in the dark attic
2. In the sentence "Nora knelt down and unsealed the metal ring," what does unsealed mean?
A Broke the ring into tiny pieces
B Glued the ring shut tight
Prefix Un Exit Ticket UFLI Lesson 103 • Exit Ticket
10-Word Verbal Reading Check
Student:
Date:
Student Reading Card (Read aloud across the rows) 6 Real Words • 4 Nonsense Words (☆)
1 unlock
2 unsafe
3 unzip
4 ☆ unblen
5 unkind
6 ☆ unfip
7 unplug
8 ☆ unzest
9 unrest
10 ☆ unskag
Teacher Scoring & Diagnostic Grid ☆ = Nonsense / Pseudoword
# Word Acc Rate Miscue 1 unlock Auto / Dec 2 unsafe Auto / Dec 3 unzip Auto / Dec 4 unblen ☆ Auto / Dec 5 unkind Auto / Dec
# Word Acc Rate Miscue 6 unfip ☆ Auto / Dec 7 unplug Auto / Dec 8 unzest ☆ Auto / Dec 9 unrest Auto / Dec 10 unskag ☆ Auto / Dec
Oral Morphology Check: Ask Student:
"What does the prefix un- mean when added to a word?"
Target response: "Not" or "Opposite of / reverse an action"
2 pts: Both meanings 1 pt: One meaning 0 pts: Incorrect
Accuracy Totals:
Real Words: ___ / 6
Nonsense: ___ / 4
Combined: ___ / 10
Mastery Status:
9-10: Mastered
7-8: Developing
0-6: Needs Reteach
Instructional Action:
Next Lesson (104) Prefix un- Small Group Nonsense Blending Drill
