
Grade 9 Math Mastery
Ontario Test Prep & Lessons
About
What's New in Grade 9 Math Mastery
1.1.0
August 17, 2026
The app used to only test you. Now it teaches first. • 25 guided lessons, one for every topic in the course • Each lesson explains the concept, then walks through worked examples one step at a time • Every lesson names the mistakes students actually make on that topic • A short quick check at the end confirms it stuck, and counts toward your mastery • Find them under Practice, or tap "Learn this concept" on any weak topic in your progress Three times the practice • The question bank has grown from 100 questions to 400 • Every topic now has 15 or more questions instead of 4 • Better spread across difficulty levels, so practice keeps pace as you improve Now on iPad • Every screen adapts to the larger display instead of stretching • Works in portrait and landscape Fixes and polish • Removed the Academic/Applied choice — Ontario moved to a single Grade 9 math course in 2021, and the old setting was hiding whole topics from some students • Fixed two questions that marked the correct answer wrong • Lesson quick checks now count toward your streak and totals • Faster session history, daily challenge history and weekly reports • Fixed overlapping text when revealing worked example steps • Better VoiceOver support in the new lesson screens • Various stability fixes across the game modes
MoreSubscription plans
Grade 9 Math Mastery — Monthly
Full access to all strands, modes & tests.






