Science Practice Not Raising Your M.1-3 Scores? 5 Common Problems and Fixes
Many Thai lower-secondary students work through page after page of science exercises, then see the same result on their midterm or final. The cause is rarely the number of questions; more often it is how they practice. This guide covers five common problems with M.1-3 science practice (Mathayom 1 to 3, roughly grades 7 to 9), a fix you can try right away for each one, and how ChatStick's 3,000-question science app supports it.
For a general overview of the app first, read our full review of the M.1-3 science practice app. This article focuses on solving specific study problems.
Why more practice does not always mean better scores
Lower-secondary science spans biology, chemistry, physics, and earth and space science, and each topic builds on earlier ones. Practice pays off when it shows you what you understand and where you slip. If you only check an answer and move on, you may feel productive without touching the gaps that actually cost you marks.
Problem 1: You only check which answer is right
Knowing the correct choice helps with that one question, but a reworded version can catch you out again. The fix is to ask two things every time: why is this answer right, and why are the other choices wrong? Do this even for questions you got right.
How the app helps: Every question has a detailed explanation that gives the correct answer, the reason behind it, and a memory tip from Nong New, the app's little otter scientist.
Problem 2: You keep missing the same questions
It is easy to get something wrong, move on, and repeat the mistake on the next similar question. Keep your mistakes in one place and redo them until you can answer without the explanation. A paper notebook works, but it takes time and discipline to maintain.

How the app helps: The mistake notebook saves wrong answers automatically so students can review them until they reach Mastered status. Important questions and formulas can also be bookmarked for reading before an exam.
Problem 3: You do not know your weak topics
Studying everything equally means spending most of your time on material you already know. Before an exam, identify the topics you miss most often and give those your time first.
How the app helps: Smart Practice automatically finds weak spots and suggests what to review, while progress statistics show accuracy and mastery by topic. Students can also choose to practice by chapter or by topic.
Problem 4: You only study hard right before exams
Cramming for hours in one night is tiring and hard to sustain. A small daily target, such as 10 questions a day, is easier to keep up, and you can raise it once the habit sticks.
How the app helps: Quick 10 offers a short set of 10 questions a day, and the 100-day challenge builds discipline little by little. Learning streaks, achievement badges, and levels add encouragement to keep going.
Problem 5: You never try a full-length test
Doing well topic by topic does not guarantee you will do well on a mixed exam. Try at least one full test before the real one, then use the results to plan your final review.
How the app helps: There are separate mock exams for M.1, M.2, and M.3, plus a 100-question Grand Test covering all three levels. Afterward, a summary shows your score, accuracy, time used, strengths, and areas to review.
Problems and fixes at a glance
Problem | What to do | App feature |
Checking answers only | Understand the reason for each one | Detailed explanations and memory tips |
Repeating mistakes | Save and redo wrong answers | Mistake notebook |
Unknown weak spots | Start with topics you miss most | Smart Practice and topic statistics |
Last-minute cramming | Practice a little every day | Quick 10 and the 100-day challenge |
No full-test practice | Test yourself, then plan from results | Mock exams and Grand Test |
A simple one-week plan
Pick your level: M.1 (Explore), M.2 (Experiment), or M.3 (Master), each with 1,000 questions.
Monday to Friday, complete one Quick 10 set and read every explanation.
On Saturday, open the mistake notebook and redo that week's wrong answers.
On Sunday, use Smart Practice for weak spots, then check your statistics to choose next week's focus.
Tip: before opening an explanation, state your own reasoning in a sentence. Comparing it with the explanation shows exactly where your thinking went off track.
App information
App name: ตะลุยโจทย์วิทย์ ม.1-3 3000ข้อ (M.1-3 science practice, 3,000 questions)
Content: 3,000 questions based on Thailand's Basic Education Core Curriculum B.E. 2551 (revised B.E. 2560), at four levels: remember, understand, apply, and challenge
Price: Free to download. Watch short ads to unlock more content up to 3 times a day, or buy Unlock All Features for ฿199 once to unlock all 3,000 questions permanently, with no subscription
Compatibility: iPhone and iPad (iOS / iPadOS 18.0 or later)
Size: 35.2 MB, age rating 4+, and most content works offline
Developer: ChatStick Company Limited
Frequently asked questions
How many science questions should I do each day?
There is no fixed number, but 10 questions a day with Quick 10, reading every explanation, is a realistic place to start.
Can an M.3 student practice M.1 and M.2 questions too?
Yes. All three levels are in one app, and the 100-question Grand Test covers M.1 to M.3, so it works well for reviewing earlier foundations.
How much can I use without paying?
The app is free to download, and short ads unlock more content up to 3 times a day. Ads do not appear during questions or explanations. A one-time ฿199 purchase unlocks all 3,000 questions permanently.
What should parents know about privacy?
The app description says it does not collect personal details such as name, school, or phone number. The App Store privacy label lists coarse location, device ID, and usage data used for advertising, so parents can check the details on the app page.
Conclusion
Science scores that will not move can often be improved by changing how you practice: understand the reasoning, keep your mistakes, find weak topics, practice a little daily, and try full tests. The M.1-3 science practice app puts those steps in one place for Thai lower-secondary students. Start with one Quick 10 set today and see how many weak spots you can close this week.
See all ChatStick apps on the ChatStick App Store page



































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