Iron Rig Reading Worksheet
Grade 7 Lexile: 800L Reading Comprehension
Iron Rig Reading Worksheet
Focus: Making Inferences, Analyzing Indirect Characterization, & Citing Evidence
Name:
Date:
Period:
Inference Skill Anchor Authors show clues through characters' actions and setting. Connect clues to your knowledge:
Text Clues + Prior Knowledge = Inference
The Iron Rig
Read carefully and annotate clues about Nora's decisions and Mateo's realization.
[1] A biting November wind swept across the asphalt at the summit rest stop, carrying the smell of chilled pine and diesel exhaust. At four in the morning, the only illumination came from the amber marker lights perched along the roof of Aunt Nora’s eighteen-wheel Kenworth. Mateo hopped down from the cab, his boots crunching into fresh gravel crust. His breath billowed like white smoke in the halogen beams. Inside the cab, the heater had kept them comfortable through the steep mountain climb, but out here on the ridge of Deadwood Pass, winter was already waiting.
[2] Nora circled the massive rig with a heavy tire knocker in her gloved right hand. Thump. Thump. Thump. She struck each of the eighteen dual tires in a practiced, unbroken cadence, listening to the hollow rebound like a physician examining a heartbeat. When she reached the rear drive axle, she stopped abruptly. She bent low, slid off her leather work glove, and pressed the back of her bare knuckles against the steel wheel hub. She lingered there for several seconds, ignoring the sub-zero chill, her eyes narrowed in concentration.
[3] "Is something wrong with the truck?" Mateo asked, pulling his fleece collar up around his ears. Mateo had begged for weeks to ride along on this four-hundred-mile freight run. He had imagined truck driving would be effortless—just gripping a wide wheel, sipping sodas, and watching highway miles unravel through the windshield. But over the last six hours, Nora had barely touched the radio. Every few minutes, she had checked her convex mirrors, monitored air-brake dials, and listened intently to the low whistle of the turbocharger.
[4] "Not broken yet," Nora replied, her voice calm but firm over the steady rumble of the idling diesel. "The left brake drum is running fifteen degrees hotter than the right. Down on a six-percent mountain descent with black ice forming, a dragging brake shoe will cook your bearing grease and glaze the pads before you hit the third switchback." She reached into the aluminum locker, grabbed an oversized crescent wrench, and crawled beneath the chassis without hesitation.
[5] Mateo held the flashlight steady where she pointed, illuminating the maze of steel leaf springs, air hoses, and grease-streaked axles. Beneath the trailer, the metallic tick of cooling steel echoed against the frozen pavement. Ten minutes later, Nora slid back out, her knuckles smudged with black graphite grease. Instead of climbing into the warm cabin immediately, she paused and looked across the lot. Near the fuel pumps, a younger driver stood staring anxiously at a tangled heap of steel tire chains.
[6] Nora walked over without a word. She gripped the tension lever on the young driver’s outer tire chain, demonstrated how to align the cam locks, and guided his hands until the link clicked into place with a sharp snap. When she and Mateo finally settled into the Kenworth's worn vinyl seats, the first sleet of the approaching blizzard was pinging against the windshield. Nora released the air brakes with a loud hiss, shifted into low gear, and gave Mateo a brisk nod. "Out here, Mateo, the mountain doesn't care about your schedule. You respect the rig, and you look out for whoever shares the road."
Passage Word Count: 460 words Turn to Page 2 for Inference Tasks → Page 1 of 2
Inference Investigation & Analysis
Apply the inference equation: Cite clues from The Iron Rig and explain your reasoning.
Name:
Score: / 20
A
Close Reading Inferences (4 pts each)
1. Based on paragraphs 2 and 4, why does Nora test the steel wheel hub with her bare knuckles?
A. She is attempting to warm her fingers against the hot metal drum.
B. She relies on direct physical touch to catch warning signs before equipment fails.
C. She dropped her work glove under the chassis and could not reach it.
D. She is testing whether the paint on the wheel hub has dried completely.
Text Evidence / Clue:
2. In paragraph 3, what can the reader infer about Mateo’s initial perception of truck driving compared to reality?
A. He thought it was an easy road trip, but now sees it demands relentless vigilance.
B. He expected Nora to let him drive, but feels disappointed she kept the wheel all night.
C. He believed the Kenworth would break down immediately because of its age.
D. He realized he preferred working in an office rather than traveling through mountains.
Text Evidence / Clue:
B
The Inference Equation Chart (6 pts)
Complete the chart below by connecting the explicit text clue with your prior knowledge to draw a logical inference.
1. Text Clue (What the author wrote)
2. Prior Knowledge (What I already know)
3. Inference (What this reveals)
"Over the last six hours, Nora had barely touched the radio. Every few minutes, she had checked her convex mirrors..." (Para 3)
"Instead of climbing into the warm cabin immediately, she paused... where a younger driver stood staring anxiously..." (Para 5-6)
C
Deep Evidence Synthesis (6 pts)
Rubric: Claim (2 pts) + Evidence (2 pts) + Reasoning (2 pts)
Prompt: In paragraph 6, Nora tells Mateo: "You respect the rig, and you look out for whoever shares the road." How do Nora’s actions throughout the mountain stop prove this philosophy before she ever speaks those words? Cite at least two specific pieces of text evidence to support your inference.
CCSS.ELA-LITERACY.RL.7.1 • Cite several pieces of textual evidence to support inferences Page 2 of 2
Iron Rig Answer Key
Teacher Resource Answer Key & Rubric CCSS RL.7.1
Iron Rig Answer Key
Standard: Cite several pieces of textual evidence to support explicit analysis and logical inferences.
Total Score 20 Points
A
Section A: Close Reading Inferences (8 pts total • 4 pts each)
2 pts for correct choice + 2 pts for valid evidence
1. Why Nora tests the wheel hub with bare knuckles: Correct: B
Rationale: Nora explains in paragraph 4 that a 15-degree difference warns of a dragging brake shoe that will cook bearing grease on an icy mountain grade. Her bare skin detects subtle thermal changes before mechanical failure occurs.
Acceptable Text Evidence: "Left brake drum is running fifteen degrees hotter..." (Para 4) OR "listening to the hollow rebound like a physician..." (Para 2).
2. Mateo's perception of truck driving vs. reality: Correct: A
Rationale: Mateo expected an easy road trip (sipping sodas, watching scenery), but observes that Nora maintains intense, silent vigilance—scanning mirrors, tracking pressure gauges, and crawling in the freezing slush to adjust brakes.
Acceptable Text Evidence: "imagined truck driving would be effortless... But over the last six hours, Nora had barely touched the radio." (Para 3).
B
Section B: Inference Matrix Exemplar (6 pts total • 3 pts per row)
1 pt for valid schema + 2 pts for logical inference
Text Clue (Given)
Prior Knowledge / Schema (Exemplar)
Logical Inference (Exemplar)
"Over the last six hours, Nora had barely touched the radio. Every few minutes, she had checked her convex mirrors..." (Para 3)
When people face hazardous, high-stakes tasks, they eliminate distractions and focus all their sensory attention on safety.
Nora takes the immense responsibility of handling an 80,000-pound vehicle seriously and treats mountain conditions with disciplined respect.
"Instead of climbing into the warm cabin immediately, she paused... where a younger driver stood staring anxiously..." (Para 5-6)
Experienced workers in dangerous trades know that someone else's failure or crash on the pass endangers everyone on the road.
Truck drivers follow an unwritten code of mutual aid and highway survival; Nora prioritizes community safety above personal comfort.
C
Section C: Constructed Response Model & Rubric (6 pts total)
Claim: 2 pts Evidence: 2 pts Reasoning: 2 pts
High-Scoring Student Exemplar Response:
"Long before Nora tells Mateo her rule, her actions demonstrate that respect and community define professional driving. First, Nora demonstrates respect for the rig when she stops at the freezing summit to tap all eighteen tires and crawls beneath the chassis with a wrench to fix an overheating brake shoe before facing the icy switchbacks (Para 2, 4). Second, she shows she looks out for others when she notices an anxious novice driver in the cold and shows him how to lock his snow chains rather than retreating to her warm cab (Para 5-6). Through these actions, Mateo infers that being a real driver requires constant discipline and protecting every person on the road."
