✦ Scholar's Grimoire
High School Completion Guide
✎ Language Arts
Vocabulary, grammar, model essays, and High School Completion writing strategies
Video Resources
🎥 CrashCourse Literature

Clear breakdowns of literary analysis, essay writing, and grammar concepts.

🎥 English Anyone

Practical English grammar and vocabulary for everyday use and test prep.

Vocabulary
480 words across 4 grade levels. Flip each card to see the definition and example sentence.
Grammar
Core grammar rules for the High School Completion exam writing test
Parts of Speech

Every word in a sentence plays a role. Knowing these roles helps you identify errors.

Noun Names a person, place, thing, or idea. Luna, city, courage
Verb Shows action or state of being. runs, is, became
Adjective Describes a noun. cold, precise, insidious
Adverb Modifies a verb, adjective, or other adverb. quickly, very, never
Pronoun Replaces a noun. she, they, it, whom
Preposition Shows relationship between words. in, on, between, despite
Conjunction Connects words or clauses. and, but, because, although
Sentence Types
Simple: One independent clause.  Luna adjusted her spoon.
Compound: Two independent clauses joined by a coordinating conjunction (FANBOYS: for, and, nor, but, or, yet, so).  Luna was quiet, but the city was loud.
Complex: One independent clause + one dependent clause.  Because she could read patterns, Luna stopped the vortex.
Compound-Complex: Two independent clauses + at least one dependent clause.  Luna walked into the storm, and she stopped it before the city fell because her mind tracked every variable.
Common Errors
Run-On Sentence: Two independent clauses incorrectly joined without punctuation or a conjunction.
Wrong: She studied hard she passed the exam.
Fixed: She studied hard, so she passed the exam.
Comma Splice: Two independent clauses joined with only a comma.
Wrong: The rain was heavy, Luna did not leave.
Fixed: The rain was heavy, but Luna did not leave. (or use a semicolon)
Fragment: A group of words that is missing a subject, verb, or complete thought.
Wrong: Because she was used to the heavy.
Fixed: Because she was used to the heavy, she walked right into the fog.
Punctuation Rules
Comma: Use before FANBOYS in compound sentences, after intro clauses, and to separate items in a list. She trained daily, stayed focused, and earned her score.
Semicolon: Joins two closely related independent clauses without a conjunction. Luna understood patterns; she used them as weapons.
Colon: Introduces a list or explanation after an independent clause. She needed three things: focus, patience, and time.
Apostrophe: Shows possession (Luna's power) or marks contractions (can't, don't). Never use for plurals.
Subject-Verb Agreement
The verb must match its subject in number, not the nearest noun.
Compound subjects: Luna and Jade are both heroes. (plural)
Collective nouns: Treated as singular. The team is ready.
Indefinite pronouns: Everyone, nobody, each, either = singular. Everyone has a role.
Intervening phrases: Ignore the phrase between subject and verb. The stack of books on the shelves is dusty.
Tense Consistency
Stay in the same tense throughout a piece of writing unless there is a logical reason to shift.
Wrong: Luna walked into the storm and grabs Kael's hand. (shifts from past to present)
Fixed: Luna walked into the storm and grabbed Kael's hand.
On the test, watch for tense shifts in multi-sentence passages. They are one of the most common tested errors.
Essay Types
Know the difference before the test
Informative Narrative

Tells a story to inform. The thesis is embedded in the narrative arc rather than stated upfront. Uses characters, setting, and conflict to deliver information in a way that feels personal rather than clinical.

Clue words: story, character, scene, event, journey

Argumentative

Makes a claim and defends it with evidence and reasoning. Uses charged language to persuade. Ends with a call to action or strong restatement of the thesis. First-person ("I") is typically avoided to maintain authority.

Clue words: must, should, argue, claim, evidence, therefore

Descriptive

Creates a sensory experience of a person, place, or thing. Does not argue or explain. Immerses the reader using sight, sound, smell, taste, and touch. Adding analysis or argument would break the atmosphere.

Clue words: scent, texture, color, sound, image, atmosphere

Expository

Explains a topic analytically using neutral, clinical language. No personal opinion. Organizes by claim and evidence rather than narrative. Uses terms like "functions as," "characterized by," and "reveals how."

Clue words: functions, characterized, mechanism, analysis, process

Model Essays
Four essays, four types. Read them all. Notice how the tone, structure, and word choice shift between types.
Luna: The Static and the Star
Informative Narrative  ─  10 Comprehension Questions Below
The rain in Gotham Heights doesn't just fall. It thrums a specific, four-beat count against the window of the tea shop. Tap, tap, tap, tap. Luna adjusted her spoon for the tenth time, ensuring it sat perfectly parallel to the edge of the mahogany table. If it strayed even a millimeter, the itch started at the base of her skull and worked its way down her spine until her lungs felt like they were filling with wet sand. "Luna, breathe," Jade said, leaning across the table. Jade was all fire and jagged edges, a girl who moved through the world like she was daring it to break. Next to her, Leo was sketching in a notebook, his hands moving in a blur of charcoal. He was the anchor, the one who didn't mind that Luna had to step over every third crack in the sidewalk or that some days she couldn't leave her room because the weight of the world felt like a physical shroud. "The frequency is off today," Luna whispered, her eyes darting to the television mounted on the wall. The news was a blur of static and violet light. Her older brother, Kael, was standing on the roof of the LexCorp tower. He wasn't the brother who used to help her with her math homework anymore. He was wrapped in a flickering shroud of dark energy, his eyes glowing with a frantic, jagged light. They called him The Void. He was trying to "unmake" the city because he couldn't handle the chaos of it. He wanted to silence the noise, but he was doing it by destroying everything in his path. "He's spiking," Leo said, his voice tight. "The League can't get close. His energy fields are too reactive. Every time they fly in, he predicts their move and blasts them back." Luna felt that familiar electric hum under her skin. To everyone else, Kael's energy was a chaotic storm. To her, it was a pattern. She saw the flickers before they happened. She saw the microscopic gaps in his defenses because her mind was already programmed to look for the one thing out of place. "We have to go," Luna said. They reached the tower as the sky turned a bruised purple. Kael stood at the center of a swirling vortex. The heroes were grounded, clutching their heads as the psychic pressure of Kael's despair radiated outward. It was a heaviness that would have crushed most people. But Luna was used to the heavy. She had lived under a cloud of gray since she was ten. While the others buckled under the weight of the sadness coming off her brother, Luna walked right into it. The fog didn't scare her. It was her natural habitat. She moved through the pressure like a deep-sea diver who didn't need a suit. "Luna, get back!" Jade yelled, her hands glowing with redirected heat. "I've got the rhythm," Luna muttered. She didn't fly. She didn't have super strength. Instead, the air around her began to shimmer. Every time Kael lashed out with a bolt of void energy, Luna moved a fraction of a second before it hit. She wasn't guessing. She was calculating the trajectory because her brain couldn't stop tracking the variables. Suddenly, the shimmering expanded. A translucent barrier, perfectly symmetrical and unbreakable, formed around her, Jade, and Leo. It wasn't just a shield. It was a geometric cage of pure light that mirrored the exact frequency of Kael's chaos, canceling it out. "It's too much for him," Luna realized. She could feel her brother's frantic pulse. He was drowning in the same noise she fought every morning. She stepped into the center of the vortex. The darkness tried to swallow her, but she projected her own stillness outward. She used that relentless need for order to reorganize the shattered energy around him. She reached out and grabbed Kael's hand. The violet light flared, then began to soften, turning into a steady, calm blue as she forced the chaos into a perfect, quiet alignment. The void receded. Kael's eyes cleared, the glow fading as he collapsed into her arms, the heavy psychic weight lifting from the city like a fever breaking. Jade and Leo ran over, staring at Luna as if they were seeing her for the first time. She wasn't the fragile girl who needed a quiet room and a specific seat. She was the only one who could have stood in that storm without blinking. Luna looked at her hands, which were finally still. The world was still loud and the clouds were still gray, but the itch in her brain felt like a finely tuned instrument instead of a broken one. She looked at her friends and then back at her brother. "I guess Mom was right," Luna said softly. "Maybe my handicaps are my superpowers."
Comprehension Quiz
What is the core message of this essay?
Luna's tea shop behaviors (adjusting spoons, stepping over cracks) suggest what?
The "cloud of gray since she was ten" is a metaphor for what?
The "electric hum under her skin" and constant tracking of variables represent what?
The final line ("Maybe my handicaps are my superpowers") functions as what?
Why does the author use a superhero story to deliver information about neurodiversity?
Why could only Luna stop Kael when stronger heroes failed?
Which scene most clearly shows a perceived weakness becoming a tactical strength?
What is the cause-and-effect relationship at the heart of the essay?
Why is this topic more effective as a narrative than as an informational article?
Neurodiversity as the Ultimate Asset in Crisis Response
Argumentative Essay
For decades, traditional emergency response protocols have been built around rigid, baseline cognitive profiles. However, modern high-stress crisis management demands an architecture that thrives within chaos rather than merely resisting it. Individuals with neurodivergent minds, specifically those managing internal conditions of intense pattern fixation, hyper-vigilance, and deep emotional tolerance, are uniquely equipped to excel where typical cognitive frameworks fail. When a systemic crisis strikes, traditional responders often suffer from cognitive overload, blinded by the sudden influx of unpredictable variables. In contrast, a mind conditioned by relentless internal tracking perceives a crisis not as a chaotic disruption, but as a complex system of patterns. Hyper-vigilance ceases to be a liability and becomes a real-time hazard-prediction tool, identifying structural and tactical failure points long before standard logic models can process them. Furthermore, individuals accustomed to navigating persistent emotional weight possess an inherent resilience to external panic; they operate with a stark, survivalist clarity in environments that would psychologically paralyze others. Because the modern landscape of crisis is increasingly complex, emergency sectors must actively recruit and integrate neurodivergent minds. To dismiss these cognitive profiles as liabilities is a failure of strategic design; they are, in fact, the ultimate asset in human defense.
The Clockwork Sanctuary of District 14
Descriptive Essay
Inside the narrow, mahogany-walled sanctuary of the Gotham Heights tea shop, the world is forced into submission. Outside, the neon rain of District 14 slashes across the dark skyline, but within these four walls, order reigns supreme. The scent of bitter Earl Grey and crushed lavender hangs thick in the warm air, cutting through the damp, metallic smell of the city streets. At the corner table, a single silver spoon rests exactly three millimeters from the polished wood edge, catching the faint amber glow of a low-hanging lamp. It sits perfectly parallel, a thin line of absolute calm. Underneath the table, the old floorboards hum with the distant, heavy vibration of passing trains, a low acoustic thrum that pulses in a steady, four-beat rhythm. Every surface is a study in precision: the porcelain cups are stacked in uniform rows of three, their handles pointing precisely due east. The sugar cubes sit in a perfect, gleaming white pyramid, untouched by the ambient chaos of the metropolis outside. In this room, time does not rush; it ticks forward with a deliberate, geometric symmetry, providing a quiet canvas where a racing mind can finally catch its breath.
The Mechanics of Hyper-Vigilance and Structural Logic
Expository Essay
Expository writing serves to analyze the structural mechanics behind a specific phenomenon. In both psychological and tactical applications, hyper-vigilance functions as an accelerated cognitive processing state characterized by an increased sensitivity to environmental stimuli. While frequently categorized as a baseline stress response, this state alters how information is gathered, sorted, and utilized during system failures or structural emergencies. When an individual experiences hyper-vigilance, the brain's threat-assessment mechanisms bypass standard filtering protocols. Instead of processing environmental data sequentially, the mind tracks multiple parallel streams of information simultaneously. In a technical scenario, such as a localized power grid failure or a structural collapse, this results in the immediate identification of microscopic anomalies, such as minute frequency shifts or structural fissures, that standard observation misses. When paired with a strong internal drive for spatial order, this cognitive state shifts from a passive reaction to an active analytical tool. The individual does not simply perceive danger; they map the structural trajectory of the failure. Understanding these mechanics reveals how specific cognitive variations can be systematically applied to complex problem-solving, turning an intense internal focus into a highly precise method of environmental analysis.
Essay Type Identification Quiz
10 questions across all four essay types
The argumentative essay's central thesis is that...
The descriptive essay engages three senses. Which combination is correct?
How does expository vocabulary differ from argumentative vocabulary?
Which essay provides the most clinical, analytical foundation?
Why does the descriptive essay avoid arguing or explaining anything?
Which best shows evidence of the expository essay's neutrality?
What is the argumentative essay's explicit call to action?
Why do argumentative and expository essays avoid first-person ("I")?
How do argumentative and expository paragraphs differ from narrative structure?
What theme connects all four model essays?
High School Completion Language Arts Tips
What to expect on test day
⚠ Test Structure

The High School Completion Language Arts test has two parts: multiple choice (75 minutes) and an extended response essay (45 minutes).

Multiple choice covers: grammar, usage, sentence structure, mechanics, and organization.

Essay: one extended response, scored 1-6 on development, organization, and language facility.

📚 Reading Passages

Expect literary and informational texts. Questions focus on: main idea, inference, vocabulary in context, text structure, and author's purpose.

✍ Test Strategies
  • Read the question before the passage, not after
  • Eliminate clearly wrong answers first
  • Look for transition words in grammar questions (they signal sentence relationships)
  • Support essay claims with evidence from the prompt, not outside knowledge
  • In the essay, your thesis should appear in your first paragraph
  • Percia can quiz you on any of these concepts. Use the button above to ask her.