Strengthen the foundation, then build.
Locked-In is the perfect supplemental practice to self-study, tutoring, or formal test-prep courses. No searching for relevant practice problems, no guesswork, just a clear, 10-week plan to help students recall and strengthen the foundational math skills that together make up the PreACT 9 Secure problems. Our approach ensures that students walk in to test day well prepared.
Content aligned
We focus on the math skills students will use on the PreACT 9 Secure and give them consistent, rigorous practice.
10-week plan
Students advance through a 10-week path: targeted foundational-topic practice; weekly cumulative reviews; and cumulative, mixed-topic practice in the final weeks. See the full curriculum >
Detailed reports
Detailed reports show practice pacing and student performance by topic and subtopic, so you can celebrate progress and identify areas for improvement.
34 problems in 45 minutes
Daily 34-problem practice helps students build stamina and confidence under PreACT 9 Secure timed-testing conditions.
Smart feedback
Detailed explanations and step-by-step solutions turn incorrect answers into learning opportunities.
Built for retention
Repeated exposure and cumulative reviews keep older math topics fresh.
How It Works
Weekly Subjects + Daily Topics
Weeks 1 - 7
Students complete topic-related practice problems for a single subject: Foundations and Number Theory; Operations and Expressions; Algebra; Data, Probability, and Applications; or Geometry. See an example >
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Weeks 8 - 10
Students complete daily, content-aligned, mixed-topic practice.
What a Daily Practice Looks Like
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Log in to the practice portal and select the week and day of your practice.
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Days 1 - 4: Practice a foundational topic related to the subject of the week (ex: Algebra > Inequalities).
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Day 5: Complete a mixed practice that covers all topics from the week.
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Day 6: Complete a cumulative review that covers all topics to date.
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Day 7: Use this day to rest and reset.
Explanations, Reports, and Analytics
At the end of each practice, view overall results, detailed explanations, and step-by-step solutions.
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Finally, review detailed reports and analytics that show progress for subjects, topics, and even time taken—an important factor when building stamina.
