Blog
The problems that come up weekly when a document has maths in it — and what to do about each one.
- The twelve question types a THPT paper can use, and what each one measures — The twelve types do not measure the same thing. What each one is actually good at, the cognitive level it fits, and the mistake each one invites.
- Marking answer sheets from a photo — what to get right before you print — Marking from a photo is far faster than by hand, but a mistake in preparation mismarks a whole room with nothing looking wrong. Four things to settle first.
- Writing a Circular 5512 lesson plan faster without dropping sections — A Circular 5512 lesson plan is long because it must be complete, not because it needs a lot of writing. The four slowest parts, and which of them can go.
- Blurry figures in a printed exam — screenshots, vectors, and how to choose — A screenshot looks fine on screen and prints soft. The difference is raster versus vector, and it decides how long your figure stays usable.
- Shuffling paper codes without breaking the answer key — four common mistakes — Shuffling by copying the file and reordering by hand is behind nearly every mismarking incident. The four most common mistakes, and how to stop each.
- Exam tables that shift and overflow on a different printer — why, and how to stop it — Two pages at home, three at school, and the answer table cut in half. The cause is not where most people look, and it can be stopped for good.
- The 2025 Vietnamese school-leaving exam format: three parts, and how to write each — The 2025 paper mixes multiple choice, four-statement true/false and short numeric answers in one exam. They are marked differently, so they are written differently.
- Why maths formulas break when a Word file opens on another machine — The paper looks right at home and turns into boxes or shifted symbols at school. What actually causes it, and three fixes by how far you want to go.