The writing section of the OSSLT is a marks goldmine if you know the templates. The opinion essay alone is worth 100 points — that is 25% of the entire test from ONE task. This unit gives you the exact blueprints, grammar rules, question-type hacks, and vocabulary that appear on every single OSSLT. No fluff, no filler — just the strategies that turn writing into free marks.
The single most important task on the OSSLT — worth 25% of your entire test
The opinion essay is the single highest-weight task on the test. It is scored on Topic Development (Code 10–60 = up to 60 points) and Conventions (Code 10–40 = up to 40 points). This is the biggest scoring opportunity on the OSSLT.
🎯 Why This Lesson Matters Most
The opinion essay is the highest-weight single task on the OSSLT. One essay, roughly 500 words, scored on Topic Development and Conventions — it carries enormous weight in the IRT scoring model. If you nail this essay, you have demonstrated the core literacy skill the test is designed to measure. This lesson gives you the exact template to follow, sentence by sentence.
How the essay is scored:
The prompt will ask you to express an opinion on a topic. Examples: “Does homework improve learning?” or “Is it a good idea for high school students to have a part-time job?” You write approximately 500 words. The word counter counts down and turns RED at the limit (you get about 10 extra words before it cuts you off).
60 points for Topic Development (Code 10–60) + 40 points for Conventions (Code 10–40) = 100 points total (25% of the entire test). Code 50+ requires SPECIFIC details (names, numbers, examples) + logical organization + transition words between AND within paragraphs. Code 40 gets the job done with sufficient but generic details. Code 30 has a clear opinion but vague or insufficient support.
🏗️ THE 5-PARAGRAPH BLUEPRINT (Exact Template)
Sentence 1 — Hook: An interesting opening that grabs attention. Use a question, a bold statement, or a surprising statistic.
Sentence 2 — State your opinion CLEARLY: “I believe that...” Pick a side. NO fence-sitting! Never say “both sides have good points.”
Sentence 3 — Preview your 3 reasons: “This is because [reason 1], [reason 2], and [reason 3].”
Sentence 1 — Topic sentence: “The first reason why [opinion] is [reason 1].”
Sentence 2 — Specific example: “For example, [specific example with names, numbers, or details].”
Sentences 3–4 — Explain: How does the example support your opinion? Connect the dots.
Sentence 5 — Concluding sentence: “Therefore, [reason 1 restated].”
Same 5-sentence structure as Body 1, but for Reason 2. Start with “In addition,” or “Furthermore,” to transition.
Same 5-sentence structure for Reason 3. Start with “Finally,” or “Most importantly,”
Sentence 1: “This essay proves that [opinion].”
Sentence 2: Summarize how you proved it — briefly mention your 3 reasons.
Sentence 3: Call to action or final thought — “It is time for [action].”
👍 FULL MODEL ESSAY — “Does homework improve learning?”
Have you ever wondered why students spend hours every night hunched over textbooks when they could be resting, playing sports, or spending time with family? I believe that homework does improve learning and is an essential part of academic success. This is because homework strengthens memory through practice, it teaches students personal responsibility, and it allows teachers to identify which concepts students have not yet mastered.
The first reason why homework improves learning is that it strengthens memory through repeated practice. For example, researchers at Duke University found that students who completed regular homework assignments scored approximately 20 percent higher on tests than students who did not. This is because the brain builds stronger neural pathways each time it revisits a concept, which means that practising math problems at home makes them easier to solve on a test. Furthermore, a survey at my own school found that 85 percent of students on the honour roll complete their homework every night. Therefore, homework strengthens memory and directly leads to better academic results.
In addition, homework teaches students personal responsibility and time management skills. For instance, when students are given a week-long assignment, they must learn to plan their time, break the task into smaller steps, and meet a deadline without a teacher reminding them every day. This is an important life skill that goes far beyond the classroom. Students who develop these habits in high school are better prepared for college, university, and the workplace. As a result, homework builds essential skills that benefit students throughout their lives.
Finally, homework allows teachers to identify where students are struggling before it is too late. Specifically, when a teacher reviews homework and notices that half the class made the same error on question five, they know that concept needs to be retaught the next day. Without homework, the teacher would not discover this gap until the unit test, when it is already too late to fix. This means homework serves as an early warning system that helps both teachers and students stay on track. Therefore, homework is a valuable tool for monitoring student progress.
This essay proves that homework does improve learning. As I have shown, homework strengthens memory through repeated practice, teaches personal responsibility and time management, and helps teachers catch learning gaps early. It is time for students to view homework not as a burden but as one of the most powerful tools for academic success.
Word count: ~450 words. Score target: Code 60 (Topic Development) + Code 40 (Conventions) = 100/100.
📈 WHAT EACH SCORING CODE LOOKS LIKE
Clear opinion. Specific details thoughtfully chosen. Coherent organization. Thoughtful progression of ideas. The reader is fully convinced.
Clear opinion. Specific details present. Logical organization. Ideas develop well but may lack the depth of a Code 60.
Clear opinion. Sufficient details but only some are specific. Mechanical organization (“Firstly... Secondly... Lastly”). Gets the job done but feels formulaic.
Clear opinion but vague or insufficient details. Some organization present. Reader can follow the argument but is not convinced.
Opinion unclear or inconsistent. Few details. Limited organization. Reader struggles to follow the argument.
No supporting details. Completely off-topic. Blank or nonsensical response.
Three things separate Code 50+ from Code 40:
Answers are on the Solutions Page.
Read the following prompt, then complete the tasks below.
“Should social media be banned for students under the age of 16?”
These exact conventions are tested on every single OSSLT — master them for free marks
Writing conventions MC questions appear in BOTH sessions — about 14 questions total worth approximately 8–10 points each = ~120 points. Plus your essay Conventions score is worth 40 points. Grammar knowledge is worth ~160 points (40% of the test).
🎯 Why These 8 Rules Matter
The Conventions score on your essay is worth 40 points. The Writing Multiple-Choice section also tests grammar directly. The same 8 rules appear on every single OSSLT. If you memorize these 8 rules, you will catch the errors in the MC questions AND keep your essay’s Conventions score at Code 30–40.
RULE 1: Comma with Non-Essential Info (Appositives)
If you can remove the phrase and the sentence still makes complete sense, it needs commas around it. Remove “located in front of the Parliament Buildings in Ottawa” — “The Peace Tower was built between 1919 and 1927” still works. So the phrase gets commas.
RULE 2: Apostrophes (Possession vs. Contraction)
Whenever you see “it’s” or “its,” try replacing it with “it is.” If “it is” makes sense, use it’s. If not, use its. “The dog wagged it is tail” = nonsense, so it must be “its tail.”
RULE 3: Subject-Verb Agreement
Find the REAL subject and ignore everything between the subject and the verb. “The group of students was late.” The subject is “group” (singular), not “students.”
RULE 4: Sentence Fragments & Run-Ons
Fragment test: Does the sentence have a subject AND a verb AND express a complete thought? If any piece is missing, it is a fragment. Run-on test: Can you find two complete sentences with no punctuation or conjunction between them? That is a run-on.
RULE 5: Verb Tense Consistency
Read the sentence and check: are all the verbs in the same time zone? If the sentence starts in the past, it should stay in the past. If it starts in the present, stay in the present. Watch for sneaky tense shifts mid-sentence.
RULE 6: Comma in Compound Sentences
The formula is: [complete sentence] + COMMA + [and/but/or/so/yet] + [complete sentence]. If what comes after the conjunction is NOT a complete sentence, you do NOT need a comma. “She ran fast and won” = no comma (no subject after “and”).
RULE 7: Colon and Semicolon
Colon: What comes BEFORE the colon must be a complete sentence. What comes AFTER is a list or explanation. Semicolon: Both sides of the semicolon must be complete sentences that could stand alone. A semicolon is basically a period that says “these ideas are related.”
RULE 8: Quotation Marks & Dialogue Punctuation
Single quotes are used inside double quotes when quoting someone else’s words: He said, “My coach always tells us, ‘Go! Hurry!’ before every race.”
On the OSSLT, questions about single quotation marks are really asking: “What do the single quotes indicate?” The answer is almost always: they show that someone is quoting another person’s words within their own speech.
Answers are on the Solutions Page.
Every writing MC question fits one of four types — learn the hack for each
The Writing MC sections (Sections 4 and 7) have 7 questions each = 14 questions total. Each is worth ~8–10 points. That is ~120 easy points if you know the 4 question types.
🎯 The 4 Types You Will See
The Writing Multiple-Choice section contains about 8 questions. Every single one fits into one of these four types. If you know the type, you know the strategy.
TYPE 1: “Which Sentence Does NOT Belong?”
You get a paragraph with numbered sentences. One sentence does not fit the topic. Your job is to find the one about a DIFFERENT topic.
“(1) Traffic congestion is a growing problem in major cities. (2) Commuters often spend over an hour each way getting to work. (3) Public transit systems are struggling to keep up with demand. (4) Tall buildings often line the streets. (5) Cities are exploring solutions such as congestion pricing and expanded bus routes.”
Answer: Sentence 4. The paragraph is about traffic challenges and solutions. Sentence 4 is about buildings — a completely different topic.
Step 1: Read sentence 1 — it usually states the TOPIC. Step 2: For each remaining sentence, ask: “Is this about the same topic?” Step 3: The one about a DIFFERENT topic = the answer.
TYPE 2: “Where Is the Best Place to Insert This Sentence?”
You get a paragraph plus a new sentence to insert. You must choose the best location.
Paragraph about the history of the toothbrush: “(1) The first toothbrush dates back over 3000 years. (2) Modern toothbrushes were first manufactured in 1938. (3) Today, electric toothbrushes are the most popular choice.”
Sentence to insert: “They were originally chew sticks made from twigs.”
Answer: After sentence 1. The inserted sentence gives details about the FIRST toothbrush (sentence 1), so it logically follows sentence 1 and comes before the jump to 1938.
The inserted sentence should follow logically from the sentence BEFORE it and lead naturally into the sentence AFTER it. Look for chronological order (dates, time words) or logical flow (general to specific, cause to effect).
TYPE 3: “Sentence Combining”
You get 2–3 short sentences that need to be combined into one clear sentence.
Original sentences: “Carl J. Eliason invented the snow machine. It was made using bicycle and car parts and a pair of skis. It was patented in 1927.”
Options:
A) Carl J. Eliason’s snow machine invention, patented in 1927, was made using bicycle and car parts and a pair of skis.
B) Carl J. Eliason invented the snow machine and it was patented in 1927 and it was made using bicycle and car parts and a pair of skis.
C) In 1927, a snow machine, Carl J. Eliason invented it using bicycle and car parts.
D) Carl J. Eliason’s snow machine was made, and it was patented, and it used parts.
Answer: A. It keeps ALL the information, is grammatically correct, and does not change the meaning.
The best combined sentence: (1) keeps ALL the information from the original sentences, (2) is grammatically correct, and (3) does not change the meaning. Eliminate any option that drops details, adds new info, or creates a run-on.
TYPE 4: “Which Sentence Is Written Correctly?”
Four sentences — pick the one with correct grammar and punctuation. This is where all 8 grammar rules from Lesson 2 come into play.
A) Put the wrapper in the recycling bin.
B) Put the wrapper, in the recycling bin
C) Put the wrapper in the recycling bin,
D) put the wrapper in the recycling bin
Answer: A. It is a declarative sentence with correct capitalization and a proper period.
Run through this checklist for each option: (1) Does it start with a capital letter? (2) Does it end with the correct punctuation? (3) Are commas placed correctly? (4) Does the subject agree with the verb? (5) Is it a complete thought? Eliminate options that fail any check.
Answers are on the Solutions Page.
Type 1 — Which Sentence Does Not Belong?
Type 2 — Best Place to Insert a Sentence
Type 3 — Sentence Combining
Type 4 — Which Sentence Is Written Correctly?
Templates for the short writing tasks that appear in both Session A and Session B
Short writing tasks are scored on content, specific details, and conventions. Worth approximately 30 points each.
🎯 What This Lesson Covers
Besides the opinion essay, you will face two other writing tasks: the Short Writing Task (appears in both sessions) and the News Report. These are shorter and simpler than the essay, but they still require a specific structure to score well. Use the templates below and these become quick, easy marks.
~30 points total. Markers evaluate: (1) topic development — did you develop the topic with specific details? (2) supporting details — are your examples concrete and relevant? (3) organization — does it flow logically? Use the exact wording from the prompt in your first sentence to guarantee you are on topic.
📝 THE SHORT WRITING TASK (~100 words)
The prompt asks you to identify something and explain it with specific details. Typical example: “Identify an important environmental issue. Use specific details to explain why it is important.”
Sentence 1: State the issue/topic directly. “One of the most important environmental issues facing the world today is climate change.”
Sentence 2: First reason with a specific detail. “Climate change is important because rising global temperatures are causing polar ice caps to melt at an alarming rate, which scientists predict will raise sea levels by over one metre by 2100.”
Sentence 3: Second reason with a specific detail. “Furthermore, extreme weather events such as hurricanes, droughts, and wildfires have become more frequent and severe, costing billions of dollars in damage each year and displacing millions of people worldwide.”
Sentence 4: Concluding thought. “For these reasons, climate change is an urgent issue that requires immediate global action.”
One of the most important environmental issues facing the world today is climate change. Climate change is important because rising global temperatures are causing polar ice caps to melt at an alarming rate, which scientists predict will raise sea levels by over one metre by 2100. Furthermore, extreme weather events such as hurricanes, droughts, and wildfires have become more frequent and severe, costing billions of dollars in damage each year and displacing millions of people worldwide. For these reasons, climate change is an urgent issue that requires immediate global action.
Use the exact wording from the prompt in your first sentence. If the prompt says “Identify an important environmental issue,” your first sentence should say “An important environmental issue is...” This guarantees you are on topic and earns you immediate marks for reading comprehension.
~30 points total. Markers evaluate: (1) content — did you answer the 5W+H? (2) organization — does it follow the inverted pyramid (most important info first)? (3) conventions — third person, past tense, objective tone, at least one direct quote from a named person. Making up realistic details is expected and required.
📰 THE NEWS REPORT
You are given a headline and a picture. You MAKE UP the facts. Your job is to write a realistic news article. It must be objective (no personal opinions), factual (even though you are inventing the facts), and in third person (he, she, they — never “I”).
Your news report must answer the 5W+H: Who? What? Where? When? Why? How?
Paragraph 1 — The Lead: [City, Date] — [What happened] at [Where] on [When]. [Who was involved].
Paragraph 2 — Details: [More details about How it happened]. [Quote from a witness, organizer, or official].
Paragraph 3 — Significance: [Why this matters]. [What happens next].
Sample headline: “Students Participate in Important Election”
TORONTO, ON — Over 500 students at Riverside Secondary School participated in a mock federal election held in the school gymnasium on Tuesday, October 15. The event was organized by the school’s social studies department as part of their civics education program.
Students in Grades 9 through 12 cast ballots for real candidates from all major parties after weeks of in-class research and debate. “We wanted students to understand that their voices matter and that voting is a responsibility, not just a right,” said social studies teacher Mr. David Chen, who coordinated the event.
The mock election results closely mirrored the actual riding results, which surprised many participants. The school plans to make the mock election a permanent tradition for every future federal and provincial election, giving students hands-on experience with the democratic process before they reach voting age.
Answers are on the Solutions Page.
Headline: “Local Students Clean Up Neighbourhood Park”
Picture description: A group of students wearing gloves and carrying garbage bags stand in a park. A banner behind them reads “Clean Our Community.”
“Identify an important benefit of reading. Use specific details to explain why it is important.”
Every word and rule you need, organized for maximum test-day recall
Vocabulary-in-context questions appear 2–3 times per reading section. Across the whole test, that is 8–10 vocabulary questions worth ~80 points. Knowing these 50 words gives you a massive advantage.
🎯 Why Vocabulary Matters on the OSSLT
Many students lose marks not because they do not know the answer, but because they do not understand what the question is asking. The OSSLT uses the same academic vocabulary repeatedly. If you know these 50 words, you will understand every question on the test and write with more precision in your essays.
📚 Group 1: Communication Words
| # | Word | Definition | Example Sentence |
|---|---|---|---|
| 1 | focus | the main point or centre of attention | The focus of the article is the impact of pollution on wildlife. |
| 2 | quote | to repeat the exact words from a text | The author quotes a scientist who warns about rising sea levels. |
| 3 | indicate | to point out or show | The data indicate that student achievement has improved this year. |
| 4 | express | to communicate thoughts or feelings | The editorial expresses concern about the lack of green spaces in the city. |
| 5 | demonstrate | to show or prove clearly | The experiment demonstrates that plants grow faster with sunlight. |
| 6 | purpose | the reason something is written or done | The purpose of the campaign is to encourage recycling in schools. |
| 7 | audience | the intended readers or listeners | The audience for this brochure is parents of elementary school students. |
| 8 | message | the main idea or theme being communicated | The message of the speech is that every person can make a difference. |
| 9 | persuasive | intended to convince someone | The author uses a persuasive tone to argue for longer recess periods. |
| 10 | organize | to arrange in an orderly way | The writer organizes the essay using a cause-and-effect structure. |
📚 Group 2: Analysis Words
| # | Word | Definition | Example Sentence |
|---|---|---|---|
| 11 | recognize | to identify or acknowledge | Students must recognize the author’s point of view in the passage. |
| 12 | according to | as stated by a source | According to the article, over 60% of teens use social media daily. |
| 13 | chronological order | arranged in time order | The events in the biography are presented in chronological order. |
| 14 | revision | the process of improving writing | After revision, the student’s essay was much clearer and more organized. |
| 15 | insert | to place something into a text | The best place to insert the sentence is after paragraph two. |
| 16 | refer | to mention or direct attention to | The question asks you to refer to details from the passage. |
| 17 | suggest | to imply or propose an idea | The ending of the story suggests that the character has grown. |
| 18 | represent | to stand for or symbolize | The dove in the poem represents peace and hope. |
| 19 | mention | to briefly speak or write about | The article mentions several benefits of outdoor exercise. |
| 20 | accurate | correct and free from error | Make sure your summary is an accurate reflection of the passage. |
📚 Group 3: Action Words
| # | Word | Definition | Example Sentence |
|---|---|---|---|
| 21 | participate | to take part in an activity | Over 200 students participate in the annual science fair. |
| 22 | volunteer | to offer time or services freely | Many teens volunteer at local food banks during the holidays. |
| 23 | contribute | to give or add to something | Each student was asked to contribute an idea to the project. |
| 24 | promote | to encourage or support | The school promotes healthy eating through its breakfast program. |
| 25 | provide | to supply or make available | The article provides evidence that reading improves vocabulary. |
| 26 | prepare | to get ready for something | Students should prepare for the OSSLT by practising with sample tests. |
| 27 | present | to show or deliver information | The graph presents data on student attendance over five years. |
| 28 | combine | to bring together into one | The question asks you to combine three sentences into one. |
| 29 | survive | to continue to live or exist | The species survives by adapting to changing weather conditions. |
| 30 | connect | to link or join together | The conclusion should connect back to the thesis statement. |
📚 Group 4: Description Words
| # | Word | Definition | Example Sentence |
|---|---|---|---|
| 31 | benefit | an advantage or positive result | One major benefit of the program is improved student confidence. |
| 32 | improvement | the process of making something better | The school has seen a significant improvement in test scores. |
| 33 | impact | a strong effect or influence | The drought had a devastating impact on local farmers. |
| 34 | effective | producing the desired result | The anti-bullying campaign has been effective in reducing incidents. |
| 35 | environmental | relating to the natural world | Environmental groups are pushing for stricter pollution laws. |
| 36 | community | a group of people in the same area | The community came together to support families affected by the flood. |
| 37 | issue | a topic of debate or concern | Climate change is the most pressing issue of our generation. |
| 38 | appropriate | suitable for the situation | The speaker used language appropriate for a Grade 10 audience. |
| 39 | relevant | connected to the topic at hand | Include only details that are relevant to the question being asked. |
| 40 | similar | having qualities in common | The two articles express similar views on the importance of reading. |
| 41 | relationship | a connection between two things | The passage explores the relationship between diet and academic performance. |
| 42 | conclusion | a final decision or judgment | In your conclusion, restate your main argument. |
| 43 | solution | an answer to a problem | The article proposes several solutions to the traffic problem. |
| 44 | advice | guidance or recommendations | The doctor’s advice was to exercise for at least 30 minutes daily. |
| 45 | factor | a contributing element | Parental involvement is a key factor in student success. |
| 46 | feature | a distinctive quality or characteristic | An important feature of the program is its accessibility to all students. |
| 47 | characteristic | a defining quality or trait | One characteristic of a strong essay is clear organization. |
| 48 | option | a choice or alternative | Students have the option to complete the project individually or in groups. |
| 49 | interview | a formal conversation to gather information | The reporter conducted an interview with the school principal. |
| 50 | related | connected to something else | The question asks about issues related to technology in schools. |
📋 CONVENTIONS QUICK REFERENCE
| Type | Purpose | End Punctuation | Example |
|---|---|---|---|
| Declarative | Makes a statement | Period (.) | The test is tomorrow. |
| Interrogative | Asks a question | Question mark (?) | Is the test tomorrow? |
| Imperative | Gives a command | Period (.) or Exclamation (!) | Study for the test. |
| Exclamatory | Expresses strong emotion | Exclamation mark (!) | I cannot believe the test is tomorrow! |
| # | Rule | Example |
|---|---|---|
| 1 | After introductory words/phrases | First, she read the passage carefully. |
| 2 | Around non-essential info (appositives) | The Peace Tower, located in Ottawa, was built in 1927. |
| 3 | Before a conjunction in compound sentences | She studied hard, and she passed the test. |
| 4 | Separating items in a list | She bought pens, paper, and erasers. |
| 5 | Before a direct quote | The teacher said, “Please sit down.” |
| Use | Rule | Example |
|---|---|---|
| Possession (singular) | Add ’s | the student’s book |
| Possession (plural ending in s) | Add ’ only | the students’ books |
| Contraction | Replace missing letters | don’t (do not), it’s (it is) |
| its vs. it’s | its = possession, it’s = it is | The dog wagged its tail. It’s a nice day. |
| Set | Meanings | Memory Trick |
|---|---|---|
| there / their / they’re | location / belonging to them / they are | “they’re” = try replacing with “they are”; “their” = ownership (has “heir” in it) |
| its / it’s | belonging to it / it is | Replace with “it is” — if it works, use it’s |
| to / too / two | direction / also or excessive / the number | “too” has too many o’s |
| your / you’re | belonging to you / you are | Replace with “you are” — if it works, use you’re |
| than / then | comparison / sequence | “than” compares (both have “a”); “then” is time (both have “e”) |
| affect / effect | verb (to influence) / noun (the result) | A for Action (affect = verb); E for End result (effect = noun) |
| Purpose | Transition Words |
|---|---|
| Sequence | First, Second, Third, Next, Finally, Lastly, To begin with |
| Addition | Also, Furthermore, Moreover, In addition, Besides, Additionally |
| Contrast | However, On the other hand, Nevertheless, Although, Despite, Yet |
| Cause / Effect | Therefore, As a result, Consequently, Because, Due to, Thus |
| Example | For example, For instance, Such as, Specifically, In particular |
| Conclusion | In conclusion, To summarize, Overall, Therefore, In summary, All in all |
Answers are on the Solutions Page.