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Press Night: Proof the Festival
Created by Argraide
Updated October 27th, 2026
At a glance
- Staff pick
- Picked by the Argraide team
- Play mode
- 📱 Solo
- Format
- 🖼️ 2D
- Length
- ⏱ About 20 minutes
- Subject
- ELA
- Grade
- 10
- Curriculum
- Ontario
- Curriculum codes
- C3.4C3.3C3.1C3.5
About this activity
Grade 10 proofreading for the OSSLT: the student is a print shop's proofreader the night before a fictional Ottawa Valley festival. On each proof line they first tap the spot where the error sits (or decide the line is already correct), then fix it with an OSSLT-style drop-down menu whose wrong options are real traps.
What students learn
- Find and repair comma splices, run-on sentences and fragments without creating a new error or changing the meaning
- Make verbs agree with tricky subjects (each of, the list of, collective nouns) and replace unclear pronouns with the right name
- Choose the right sound-alike word (their/there/they're, its/it's) and use apostrophes only for ownership and contractions
- Use Canadian spelling (colour, theatre, travelled, licence as a noun, practise as a verb)
- Recognize when a line is already correct and leave it alone
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