Clue Hunters Teacher Guide Day 1 • Teacher Guide
Clue Hunters: Topic vs. Main Idea
Grade 3 • 45 Mins
Target Objective
Students differentiate between general topic (1-2 words) and the main idea (complete big-point sentence).
Standard & Skills
CCSS.ELA-LITERACY.RI.3.2: Determine the main idea of a text; recount key details and explain how they support.
Materials Needed
Clue Hunters Slides, Detective Notebook Worksheet, Yellow Highlighters, Mystery Bag prop.
Instructional Flow & Timing
1. Hook & Mystery Bag Warm-Up (8 Mins) Whole Group
Present a "Detective Mystery Bag" containing a toothbrush, dental floss, and toothpaste. Ask: "What is the topic?" (Dental hygiene / teeth). Next, pull out a note stating: "Brush twice daily to avoid cavities." Ask: "What is the big idea?" Emphasize that a topic is a subject label, while a main idea makes an actual point about that topic.
2. Direct Instruction & Anchor Formula (12 Mins) Slide Presentation
Display Slide 3 with the Detective Formula: Topic + What the author wants us to know = Main Idea. Show that a topic is like a detective's case folder label (e.g., "Bats"), while the main idea is the case report conclusion (e.g., "Bats are nocturnal hunters that help control pest bugs").
3. Guided Practice: "The Honeybee Mystery" (10 Mins) We Do
Project Paragraph 1. Model thinking aloud: "Every sentence mentions honeybees. So the topic is honeybees. But are we learning how honey tastes, or how hard bees work in a hive? Let's inspect the evidence to build our complete main idea sentence."
4. Independent Clue Hunting & Partner Debrief (15 Mins) You Do / Pairs
Students complete the Clue Hunters Worksheet . Circulate to check that students write complete sentences for the main idea and not just 1-2 words. Wrap up with the 60-second Detective Badge Exit Check.
Core Concept Anchor: Remind students: "If your main idea is only 1 or 2 words, stop! You have found the topic , not the main idea . Ask yourself: What did the author explain about that topic?"
Day 1 • Teacher Script & Differentiation
Teacher Talk & Strategy Toolkit
Day 1 of 3
Verbatim Minilesson Script
Teacher: "Detectives, when someone asks you what a movie was about, you could say 'dinosaurs'. That tells them the topic . But does it tell them if the dinosaurs were friendly pets, ferocious museum exhibits, or building a spaceship?"
Students: "No!"
Teacher: "Exactly! To tell the main idea , you have to say: 'The movie shows how scientists brought dinosaurs back to life on a wild island theme park.' That is the full big idea. Today, we are training our detective eyes to never stop at the topic—we always capture the full main idea!"
Common Misconceptions & Corrections
Pitfall 1: One-Word Answer
Student writes: "Chameleons."
Correction Prompt: "That's your topic! Now, what special fact does the author teach us about chameleons in this whole paragraph?"
Pitfall 2: Grabbing a Tiny Detail
Student writes: "They have sticky tongues."
Correction Prompt: "Sticky tongues is cool, but is the whole passage only about tongues, or about how they hunt for insects?"
Tiered Differentiation Paths
Support
Sentence Frame Stems: Provide structured sentence starters: "The topic is ________. The author wants me to know that ________." Highlight the first and last sentences of passages with yellow markers as detective starting checkpoints.
On Level
Magnifying Glass Rule: Students underline the repeated topic noun in each sentence, then write their own single synthesized main idea sentence without copying verbatim from the text.
Extend
Headline Writer Challenge: Students rewrite their main idea sentence into a punchy 6-to-8 word newspaper front-page headline that summarizes the core takeaway without losing key meaning.
Unit: Main Idea Detectives • Lesson 1 of 3 • Next: Supporting Cast (Key Details & Table-Leg Evidence)
Clue Hunters Slides Detective Academy • Mission 1
3rd Grade Reading Comprehension
Clue Hunters:
Topic vs. Main Idea
Crack the case of reading! Learn how detectives uncover the author's big message instead of just stopping at the topic label.
Find the Clues
•
Spot the Big Idea
•
Solve the Mystery
Detective Briefing
What Is the Difference?
The Topic
The general subject of the text. It answers: Who or what is this text about?
Clue Rule:
Usually only 1 or 2 words!
Example: "Honeybees"
The Main Idea
The big point or central thought the author wants you to learn about that topic.
Clue Rule:
Always a complete sentence!
Example: "Honeybees work together in hives to make food and survive."
Remember: Don't stop at the topic! A detective always completes the full sentence.
Detective Tool
The Secret Formula
Step 1
Topic
(Who or What)
Step 2
Author's Point
(What about it?)
=
Result
Main Idea
(Complete Sentence)
Ask: "What is repeated?" Look for keywords or synonyms that appear across multiple sentences.
Ask: "What is the umbrella?" Does this big sentence cover every other fact in the paragraph?
Master Formula: Topic + Key Author Message = Main Idea
Case File #101 • Guided Practice
Let's Crack the Case!
"Honeybees have many important jobs to keep their hive healthy. Some bees fly out to gather sweet flower nectar. Other bees stay inside the hive to feed the baby larvae and nurse them. Worker bees also build neat wax honeycombs and guard the entrance from sneaky enemies."
Question 1: What is the TOPIC?
Answer: Honeybees / Honeybee jobs (1-2 words)
Question 2: What is the MAIN IDEA?
Answer: Honeybees perform many different jobs to keep their hive healthy.
Notice how the first sentence acts as the umbrella for the rest of the facts! Case Status: Solved!
Detective Team Challenge
Your Independent Field Mission
Clue Hunters Worksheet Detective Casebook • Day 1
Clue Hunters: Topic & Main Idea
Detective Name:
Date:
Detective Formula: Topic = 1-2 Words (Who/What) | Main Idea = Full Sentence (What the author teaches)
Case File #1 Read the clues carefully
Chameleons have amazing body features that help them survive in the wild. Their eyes can swivel and look in two different directions at the exact same time. They have long, super-sticky tongues that snap out in a split second to snag bugs. Plus, their special scaly skin can change colors to blend in with green leaves or warm tree bark.
1. What is the TOPIC? (Only 1 or 2 words):
2. What is the MAIN IDEA? (Write a complete sentence):
Case File #2 Inspect the evidence
Cactus plants have special ways to store water in hot, dry deserts. A thick, waxy skin wraps around the outside of the cactus to stop precious moisture from escaping into the dry air. Deep inside the stem, spongy tissue holds gallons of rainwater like a giant storage tank. Sharp spines also protect this stored water from thirsty desert animals.
1. What is the TOPIC? (Only 1 or 2 words):
2. Which sentence best states the MAIN IDEA? (Bubble one choice):
A. Sharp cactus spines hurt desert animals that walk by.
B. Cactus plants have special adaptations to store and protect water in the desert.
C. Rain falls very rarely in desert regions.
Turn to Page 2 for Case File #3 and your Detective Badge Check!
Advanced Detective Mission
Page 2
Case File #3 Write your own evidence
Many deep-sea creatures create their own light to survive in the pitch-black ocean depths. Anglerfish dangle a glowing bulb above their mouths to lure curious prey close enough to catch. Lanternfish flash glowing spots on their bellies to communicate with their school. Other deep sea jellyfish squirt bright glowing clouds into the water to blind predators and swim away safely.
1. What is the TOPIC of this passage?
2. In your own words, what is the MAIN IDEA of this passage?
3. Write ONE clue or detail from the text that proves your main idea:
Detective Badge Check
Read each item below. Mark whether it is a Topic (T) or a Main Idea (M) .
1. "Sea turtles"
Topic Main Idea
2. "Sea turtles migrate thousands of miles to lay eggs on the same beach where they were born."
Topic Main Idea
3. "Recycling plastic helps protect ocean animals from pollution."
Supporting Cast Teacher Guide Day 2 • Teacher Guide
Supporting Cast: Key Details & Evidence
Grade 3 • 45 Mins
Lesson Goal
Identify key supporting details that prove the main idea, and separate relevant evidence from irrelevant "imposter" facts.
Core Analogy
The Sturdy Table: The tabletop is the Main Idea; the legs are the Key Supporting Details holding it up.
Materials Needed
Supporting Cast Slides, The Great Detail Sifter Activity Sheets, Red/Green pencils or markers.
Lesson Flow & Time Allocations
1. The Wobbly Table Hook (7 Mins) Whole Group
Draw a tabletop floating in the air. Ask: "What happens if I try to set heavy books on this tabletop?" (It crashes!). Add four strong legs. Explain that a main idea cannot stand on its own without supporting detail legs to prove it true.
2. Direct Instruction: Spotting the Imposter Detail (13 Mins) Slide Presentation
Display Slide 3. Teach students the difference between Essential Supporting Details (facts that explain, prove, or describe the main idea) and Interesting Extras / Imposters (neat facts that belong to the topic but do NOT prove the specific main idea).
3. Guided Practice: Sifting Polar Bears (10 Mins) We Do
Read a paragraph on polar bear adaptations. Present four detail sentences. One sentence says: "A polar bear at the city zoo likes eating ice blocks on hot summer days." Guide students to identify why this sentence is an "imposter leg" that does not support survival in the arctic wild.
4. The Great Detail Sifter Activity & Table Builder (15 Mins) Partner & Independent
Students work in detective pairs on the Supporting Cast Activity to build sturdy 3-legged table organizers and strike through imposter details using their Detective Evidence Check.
Key Test for Students: "Does this detail prove why the main idea is true? If yes, it's a sturdy leg! If it's just a fun fact that doesn't support the big claim, it's an imposter!"
Day 2 • Script & Teacher Support
Teacher Dialogue & Evidence Rubric
Day 2 of 3
Minilesson Dialogue: The Table Test
Teacher: "Imagine our Main Idea is: 'Eating a healthy breakfast gives your body energy for school.' Now listen to this detail: 'Pancakes can be shaped like Mickey Mouse.' Is that true?"
Students: "Yes!"
Teacher: "Is it fun?"
Supporting Cast Slides Detective Academy • Mission 2
3rd Grade Reading Comprehension
Supporting Cast:
Holding Up the Main Idea
A main idea cannot stand on its own! Learn how strong supporting details build proof and how to spot sneaky "imposter" facts.
The Sturdy Table
•
Sift the Evidence
•
Bust Imposter Details
Detective Visual Tool
The Sturdy Table Test
Tabletop
MAIN IDEA: The Big Core Point
Without legs, this tabletop crashes to the floor!
Detail Leg #1
Fact that proves or describes
Detail Leg #2
Example or explanation
Detail Leg #3
Evidence or reason
Strong tables need at least 2 to 3 solid detail legs to stand strong!
Detective Trap
Beware the Imposter Detail!
✓
Sturdy Supporting Detail
Directly proves, explains, or gives examples of the main idea sentence.
Example:
"Beavers use their razor-sharp orange teeth to cut down heavy logs for their dam."
✗
The Imposter Detail
It might be true, interesting, and about the same animal—but it does NOT prove the main idea!
Example:
"A baby beaver is called a kit and is very cute."
Detective Test: Say: "[Main Idea] BECAUSE [Detail]." Does it make sense?
Case File #201 • Evidence Inspection
Find the Imposter Leg!
Tabletop Main Idea:
Polar bears have special adaptations to survive freezing arctic weather.
1. A 4-inch layer of thick blubber fat keeps their core body warm. Sturdy Leg ✓
2. Dense oily fur sheds freezing water so ice never freezes to skin. Sturdy Leg ✓
3. The polar bear exhibit is popular at the San Diego zoo. IMPOSTER! ✗
The zoo fact is true, but it doesn't explain how they survive arctic freezing weather!
Activity Briefing
The Great Detail Sifter
1. Read the Case
Read each passage with your partner. Identify the tabletop main idea first.
2. Bust Imposters
Draw a red line through any detail that doesn't prove the main idea.
3. Build 3 Legs
Write down the 3 sturdy detail legs that hold up the case report!
Ready detectives? Grab your pencils and let's build sturdy evidence tables!
Supporting Cast Activity Detective Casebook • Day 2
Supporting Cast: The Detail Sifter
Detective Name:
Date:
Sturdy Table Rule: A supporting detail must prove, explain, or give evidence for the main idea.
Case File #2A: Beaver Engineers Read the field report
Beavers use incredible engineering skills to build strong dams and safe homes in rivers. First, they chew down sturdy tree trunks using their tough, chisel-shaped teeth. Next, beavers drag branches and heavy rocks into fast-moving streams to stop the water flow. Finally, they pack wet river mud between the logs like cement to make their lodges waterproof and safe from predators.
Tabletop (Main Idea):
Beavers use incredible engineering skills to build strong dams and safe homes.
Inspect the 4 detail clues below. Three are Sturdy Legs (✓) . One is an Imposter (✗) . Put an X through the imposter detail!
A. They chew down sturdy tree trunks with tough chisel-shaped teeth.
B. Beavers drag heavy rocks and branches into streams to stop water flow.
C. Baby beavers are born in the spring and have brown fur coats.
D. They pack wet river mud between logs like cement to seal the lodge.
Detective Debrief: Why is that sentence an imposter?
Turn to Page 2 to construct your full 3-legged Sturdy Table graphic organizer!
Case File #2B: Build the Sturdy Table
Page 2
Passage: Ant Supercolonies
Ants divide chores among thousands of workers so their underground colony can thrive. Scout ants wander out of the nest to find sugary food trails and lead others back to feast. Soldier ants stand guard with strong pinching jaws to defend the nest tunnels from invading beetles. Meanwhile, nursery workers carry eggs deeper into warm chambers to protect baby ants.
Evidence Organizer: Sturdy Table
Tabletop (Write the Main Idea in a complete sentence):
Detail Leg 1 Scout Ant Duty:
Detail Leg 2 Soldier Ant Duty:
Detail Leg 3 Nursery Worker Duty:
Detective Bonus: Create your own true "imposter" detail about ants that does NOT belong on this table:
Table Strength Check: 3 Solid Legs = Case Sturdy & Supported!
Case Solved Teacher Guide Day 3 • Teacher Guide
Case Solved: Implied Main Idea & Mastery
Grade 3 • 45 Mins
Lesson Goal
Determine implied main ideas when no direct topic sentence exists; demonstrate cumulative mastery on informational texts.
Key Detective Skill
Synthesis: Piecing together clue puzzle pieces to state the unspoken big message in student's own words.
Assessment Tools
Case Solved Slides, 3-Passage Detective Assessment, Formative Scoring Rubric.
Lesson Sequence & Pacing
1. The Missing Headline Riddle (8 Mins) Whole Group
Display a paragraph describing packing sunscreen, a beach towel, goggles, and building sandcastles. Notice: the author never wrote "Today was a fun day at the beach." Ask students: "How do you know what this is about if the author never said it directly?" Define Implied Main Idea (the clues point to it, but you must synthesize it).
2. Detective Clue Synthesis Model (10 Mins) Slides 2-4
Demonstrate the Synthesis Formula: Detail 1 + Detail 2 + Detail 3 → "What is the big truth all of these clues tell me?" Emphasize that detectives do not give up when a topic sentence is missing—they become the author and write the main idea themselves!
3. Independent Cumulative Assessment (22 Mins) Individual Assessment
Distribute the Case Solved Assessment (2 pages). Students read three independent informational passages spanning stated main ideas, supporting details/imposters, and implied main ideas. Circulate quietly with the conference observation checklist.
4. Master Detective Celebration & Reflection (5 Mins) Whole Group
Have students complete the self-reflection badge at the bottom of the assessment. Review the three days of detective growth: Topic vs. Main Idea → Sturdy Table Legs → Solving Implied Cases.
Teacher Prompt for Implied Passages: "If you can't underline the main idea sentence because the author didn't write it, what sentence WOULD you put at the top of this paragraph to explain all the clues?"
Day 3 • Evaluation & Rubric
Master Detective Assessment Rubric
Day 3 of 3
4-Level Standards Rubric (RI.3.2)
Level Main Idea Accuracy Supporting Evidence Distractor Awareness Level 4: Master Detective States clear, complete main idea sentences for both stated and implied texts. Identifies 3+ strong supporting details and explains how they uphold the main idea.
Case Solved Slides Detective Academy • Final Mission
3rd Grade Reading Comprehension
Case Solved:
Implied Main Ideas & Mastery
What happens when the author hides the main idea? Master detectives piece together hidden clues to state the big truth in their own words!
Hidden Clues
•
Synthesize Evidence
•
Earn Master Badge
Detective Investigation
Two Ways Authors Share Main Ideas
1. Stated Main Idea
The author writes the big idea directly in a clear topic sentence (usually at the very beginning or end).
Detective Strategy:
Underline the exact sentence right on the page!
2. Implied Main Idea
The author never states the big point in one sentence. The clues are scattered like puzzle pieces!
Detective Strategy:
Piece the clues together and write the sentence in your own words!
Don't panic if no sentence jumps out! You get to be the author and write the big idea!
Detective Strategy
How to Solve an Implied Mystery
1
Spot the Topic
Who or what are all these sentences talking about?
2
Gather Clue Pieces
What specific facts does the author give about this topic?
3
Connect the Clues
What is the one big lesson all these clues prove together?
Detective Self-Check Question:
"If I had to give this story a brand new headline sentence, what would it be?"
Synthesis means putting separate clues together into one powerful conclusion!
Case File #301 • Implied Clue Mystery
Can You Solve the Unspoken Truth?
"Maya unpacked fresh paintbrushes, tubes of acrylic paint, and a wide canvas. She put on an old apron covered in dried blue splashes. Next, she dipped her brush into bright yellow and made smooth strokes across the canvas until the room smelled of fresh paint."
The Clue Pieces:
Canvas, paintbrushes, paint tubes, apron, yellow strokes.
The Implied Main Idea:
Maya is setting up and beginning to create a painting.
The author never wrote "Maya loves to paint," but the evidence proves it beyond doubt!
Final Detective Certification
Your Final Mission Briefing
Passage 1
Stated Idea
Find the topic and write the stated main idea sentence.
Case Solved Assessment Detective Academy • Final Unit Assessment
Case Solved: Main Idea & Evidence
Detective Name:
Date:
Directions: Read each case file closely. Use your detective skills to find the topic, determine the main idea, and evaluate supporting details.
Case File #1: Sea Otter Tools Stated Main Idea
Sea otters are among the few ocean animals that know how to use tools to survive. While floating on their backs, they place flat rocks on their chests like anvils. Then, they smash tough clam and crab shells against the rock to crack them open for lunch. Otters even keep a favorite rock hidden in a loose pocket of skin under their front flipper to use again later.
1. What is the TOPIC of Case File #1? (1 or 2 words only):
2. Which sentence states the MAIN IDEA of this passage? (Fill in the bubble):
A. Sea otters float on their backs in cold Pacific waters.
B. Sea otters are among the few ocean animals that use tools to survive.
C. Clams and crabs have very tough shells that are hard to crack.
Case File #2: Storm Chasers Evidence & Imposters
Storm chaser scientists drive into dangerous weather to collect vital storm data. They pack armored trucks with weather radar dishes, wind meters, and video cameras. During giant supercell storms, they launch weather balloons directly into tornado clouds to measure air pressure. This daring research helps forecasters warn families earlier when severe storms strike.
3. Write ONE key detail that supports why storm chasing helps people:
4. Which of these sentences would be an IMPOSTER detail that does NOT support the main idea?
A. Storm chasers launch weather balloons to measure dropping air pressure.
B. Armored trucks carry heavy radar equipment close to rotating clouds.
C. Many action movies feature fictional storm chasers on television screens.
Turn to Page 2 for the Implied Main Idea Case and Final Certification!
Case File #3: The Unspoken Truth
Page 2
Unsolved Case File Hint: Look for the hidden message!
In late October, the grey squirrel scrambles across the forest floor from dawn until dusk. It digs dozens of shallow holes beneath damp oak leaves to bury fat acorns. Next, it gathers dry moss and pine needles in its mouth, darting up tall oak trunks to line its tree-hollow nest with thick insulation. With cooler winds blowing and days growing shorter, the squirrel never pauses to rest.
5. The author never states the main idea in a single sentence. What are TWO clue details the squirrel is doing?
6. In your own words, write the complete IMPLIED MAIN IDEA of this passage:
Bridge Builders Teacher Guide Informational Writing • 30-Minute Sprint
Bridge Builders: Informational Transitions
Grade 3 • 30 Mins
Lesson Focus
Replace chronological sequence words (first, next, then, last) with expository linking phrases that connect facts logically.
Standard Alignment
CCSS.ELA-LITERACY.W.3.2.C: Link ideas within categories of information using words and phrases (e.g., also, another, and, more, but).
Materials Needed
Bridge Builders Slides, Informational Practice Worksheet, Transition Word Bank, Highlighters.
High-Impact 30-Minute Pacing Guide
0:00 - 0:05 (5 Mins) • Hook: The "Listicle Robot" Problem Whole Group
Read a nonfiction paragraph on wild cheetahs aloud: "Cheetahs are fast predators. First, they have long legs. Next, they spot gazelles. Then, they have flexible spines. Last, they run 60 miles per hour." Ask: "Did cheetahs grow legs 'first' and spines 'then'?" (No!). Explain that facts don't happen in a timeline; they build an informational case!
0:05 - 0:13 (8 Mins) • Minilesson: 4 Expository Bridge Types Slides 2 & 3
Present the 4 informational bridge categories: Adding Evidence (In addition, Furthermore, Another important fact ), Giving Concrete Examples (For example, For instance, In particular ), Showing Cause & Effect (As a result, Because of this, Therefore ), and Concluding (Clearly, In summary, Overall ).
0:13 - 0:20 (7 Mins) • Guided Practice: Nonfiction Sentence Repair Slide 4 / We Do
Display Slide 4 featuring a paragraph about solar energy. Model upgrading robot sequence words with expository transitions that match the factual logic. Teach the introductory comma rule: "For instance, solar panels turn light into electricity."
0:20 - 0:30 (10 Mins) • Independent Application & 30-Second Sprint You Do & Wrap-Up
Students complete Page 1 of the Bridge Builders Worksheet to upgrade a paragraph about ocean coral reefs and finish the rapid Exit Sprint on Page 2. Wrap up by spotlighting 2 student sentences showing strong cause/effect transitions.
Informational Core Insight: In stories, events happen in time (then, later ). In informational texts, facts work together like supporting table legs (in addition, for example, as a result ). Help students ask: "Am I telling when it happened, or why/how it is true?"
Expository Writing Toolkit
Informational Word Vault & Dialogue Guide
Bridge Builders Slides Informational Writing • 30-Min Sprint
3rd Grade Writing Workshop
Bridge Builders:
Informational Transitions
Facts don't happen in a timeline! Learn how nonfiction writers connect facts, provide examples, and explain causes with powerful transition bridges.
Add Evidence
•
Give Examples
•
Show Cause & Effect
The Nonfiction Problem
Facts Are NOT a Timeline!
The Robot Fact List 🤖
"Cheetahs are built for speed. First , they have wide nostrils. Next , they have non-retractable claws. Then , they have large hearts. Last , they run fast."
Flaw: A cheetah doesn't grow claws 'next'—all these body parts work together at once!
The Connected Nonfiction Text ✨
"Cheetahs are built for speed. For example , their wide nostrils pull in massive amounts of oxygen. In addition , grippy claws act like running cleats. As a result , they sprint up to 60 miles per hour."
Benefit: Transitions explain how evidence supports the main idea!
Informational transitions connect facts like supporting table legs holding up a main idea!
Expository Toolkit
4 Informational Bridge Types
➕
Add Facts
Stacking more proof
In addition,
Furthermore,
Another fact is,
🔍
Give Examples
Proving with details
For example,
For instance,
In particular,
⚡
Cause & Effect
Explaining results
As a result,
Because of this,
Therefore,
🎯
Wrap It Up
Summarizing truth
Clearly,
In conclusion,
Overall,
Ask yourself: "Am I adding another detail, giving an example, or showing what happened as a result?"
Class Challenge • Guided Repair
Repairing the Solar Energy Report
1. "First, → For example, solar panels trap sunlight on rooftop silicon cells."
2. "Next, → As a result, that light is converted into clean electrical current."
3. "Then, → In addition, solar energy creates zero smoke or dirty air pollution."
Bridge Builders Worksheet Informational Writing • 30-Minute Sprint
Bridge Builders: Expository Transitions
Writer Name:
Date:
Informational Transition Vault
➕ Adding Evidence • In addition, • Furthermore, • Also,
🔍 Giving Examples • For example, • For instance, • In particular,
⚡ Cause & Effect • As a result, • Because of this, • Therefore,
🎯 Concluding • Clearly, • In conclusion, • Overall,
Part 1: Upgrade the Science Report Replace the timeline words!
Facts don't happen in a timeline! Cross out the robot words in brackets. Choose an expository bridge phrase from your Word Bank that logically connects the evidence. Don't forget your comma!
1. Coral reefs protect coastlines from fierce ocean storms. [First] their hard limestone ridges absorb the crash of giant hurricane waves.
Expository Bridge:
2. [Next] sandy beaches suffer far less flooding and soil erosion during tidal surges.
Expository Bridge:
3. [Then] reef structures provide safe shelter for over four thousand species of tropical sea life.
Expository Bridge:
4. [Last] protecting fragile coral reefs preserves both our shorelines and ocean biodiversity.
Expository Bridge:
Turn to Page 2 for the Purpose Matcher and your 30-Second Informational Sprint!
Part 2: Purpose Matching & Writing
Page 2
Part 2: What is the Transition's Job? Match phrase to purpose
1. "For instance, ..." A. Showing what happens because of a fact (Cause & Effect)
2. "Because of this, ..." B. Proving a general statement with a specific example
3. "In addition, ..." C. Summarizing the main point at the end of a report
4. "In conclusion, ..." D. Stacking an extra piece of supporting evidence
Part 3: Nonfiction Writer Challenge Honeybee Architecture Remodel
"Honeybees build hexagonal comb cells to save space and energy. [First] the six-sided shape holds the maximum amount of honey with minimum wax. [Next] worker bees consume eight ounces of honey to produce just one ounce of wax. [Then] hexagons fit together without any gaps. [Last] this geometry makes the hive light and strong."
Student Rewrite (Use at least 3 expository bridges with commas):
Teacher Key Example / Model Rewrite: Exemplar
"Honeybees build hexagonal comb cells to save space and energy. For instance, the six-sided shape holds the maximum amount of honey with minimum wax. In addition, worker bees must consume eight ounces of honey to produce just one ounce of wax.
Informational Bridges Anchor Chart Nonfiction Writer's Toolbelt
Informational Transition Bridges
Facts don't happen in a timeline! Use these bridges to glue your evidence to your main idea.
➕
Adding Evidence
Use to stack another solid fact!
In addition,
Furthermore,
Also,
Another key feature is...
"In addition, polar bears have textured footpads to grip slippery ice."
🔍
Giving Examples
Use to prove with specific proof!
For example,
For instance,
In particular,
To illustrate,
"For instance, monarch butterflies migrate over 3,000 miles to stay warm."
⚡
Cause & Effect
Use to show what happened next!
As a result,
Because of this,
Therefore,
Consequently,
"Because of this, cactus plants can survive months with zero rainfall."
🎯
Concluding & Wrap-Up
Use to summarize the big truth!
Clearly,
In conclusion,
Overall,
As you can see,
"Clearly, recycling paper protects ancient forest ecosystems."
🛑 Ditch the Robot Words: First, Next, Then, Last
🚀 Upgrade to Bridges: For example, In addition, As a result
,
The Introductory Comma Rule: When you place a transition bridge at the start of a sentence, always follow it with a comma ( , ) !
"In addition**,** ..."
