AI Practice for the Japanese Curriculum
From School Tests to the Common Test, Unlimited AI Practice
Covering the Common Test, senior high, junior high and primary school. AI generates unlimited questions in past-paper format and marks them the moment you submit, with an explanation of each slip, so you can practise just the topics you find hard until they stick.
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Common Test · Maths I·A
Solve 2x² − 5x − 3 = 0.
x = 3 or x = ½
x = 3
x = 3 or x = −½
x = −3 or x = ½
Your factorisation was right, but the negative root x = −½ is missing. We've added two similar questions to your queue.
Marked in seconds
Primary School Through to the Common Test
From primary, junior high and senior high school tests to Common Test preparation for university entrance. Choose your curriculum to browse subjects and topics and start practising.
At an international school?
thinka also covers IB, IGCSE and International A-Level programmes.
Practice Built for Japanese Exams
Question formats and marking criteria designed around Japanese examinations.
Questions in Past-Paper Format
AI generates multiple-choice, short-answer and essay questions modelled on real past papers, so the phrasing on exam day feels familiar.
See Exactly Where It Went Wrong
Instant marking points to the step where you slipped and explains the fix. thinka logs each weak topic, so you always know what to review next.
One Account, Primary to University Entrance
From primary school foundations to junior and senior high tests and Common Test preparation. Your learning history carries over as you move up the years.
How It Works
Pick a topic, practise in the real exam format, and see where you slipped. One session, three steps.
01
Choose Your Topic
Choose the Common Test, senior high, junior high or primary, then narrow to a subject and topic. Difficulty and question format are adjustable too.
02
Practise with AI
Questions modelled on past-paper formats are generated fresh each time, so there is nothing to memorise.
03
Get Instant Feedback
Marking works through your answer step by step and logs weak topics automatically, so you know what to review next.
Practise by Subject
Practise the subjects the Common Test and school tests actually examine, from maths and English to science. Pick a subject to start.
See what's covered
Free Study Resources
100,000+
Learners on thinka
20,000+
Teachers & Parents
50+
Registered Schools
36
Subjects Covered
What Learners Say
“I do thirty minutes of Common Test maths every day. The explanation shows which step I skipped, which makes revision far easier than when I only ever checked the answer.”
S
Sato
Senior High, Year 2
“We use it with my son before his junior high tests. Seeing which topics are weak in one list makes it easy to decide what to go over together at the weekend.”
T
Tanaka
Parent of a junior high pupil
Frequently Asked Questions
Last updated August 2026
Does thinka follow the Common Test past-paper format?
AI generates unlimited new questions based on Common Test question formats. The official past papers themselves are not included, so it works best once you have finished the real papers and still want more to practise on.
Can I use it for senior high school tests?
Yes. You can specify a subject and topic and adjust the difficulty, so you can drill only what your test actually covers.
Can junior high and primary pupils use it?
Yes. Junior high and primary are each their own curriculum, with questions matched to the year and topic. Parents can follow progress from their own dashboard.
Is thinka free?
A free account includes a set number of questions each day, with no card required. Upgrade for unlimited practice whenever you like, and cancel at any time.
Can AI mark written and essay answers?
Yes. Answers are checked against the structure of the marking criteria, showing which parts earned marks, which are missing, and how to write it more strongly next time.
Which subjects are covered?
Core subjects including maths, English, Japanese, science and social studies. Coverage varies by curriculum, so open the curricula above to check.
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Join 100,000+ learners using AI practice to turn weak topics into scoring ones. Free to start today.
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