Choosing a small teaching idea
The biggest mistake beginners make is trying to build a massive, complex app on their first try.
If your first idea is "a full learning management system with student logins, grading, and video hosting," you are going to get frustrated and quit.
Start small. Very small.
For your first app, you want a tool that solves one specific problem on one screen. No menus. No second page. No logins. No databases. Just a simple, interactive experience.
Too Big
- • A full accounting simulator
- • A student grading portal
- • A multi-chapter interactive textbook
Just Right
- • A "Debit or Credit?" flashcard game
- • A simple ROI calculator
- • A 5-question terminology quiz
What this looks like in other disciplines
Spot the citation error
Show one reference at a time with a single formatting mistake in it — a missing year, italics in the wrong place, authors out of order. The student clicks the part they think is wrong and gets told why.
Guess the correlation
Draw a scatterplot, ask the student to estimate r on a slider, then reveal the real value and how close they were. Ten rounds, a running score, and students stop guessing "0.9" at everything.
What would you do?
One short workplace dilemma, three plausible responses, no obviously correct answer. Whatever they pick, show the consequence and the principle it turned on. Great as the first five minutes of a seminar.
What they all share: one screen, one core decision, immediate feedback. No login, no database, no second screen — the entire learning experience fits in one view. That constraint is what makes them buildable in a single sitting.
Stuck? Steal one of these
Every one of these works in any subject, because the shape stays the same and only the content changes. Pick one, drop your own material into it, and you have an idea.
Sort examples into categories
You supply the items and the categories. A student places each one and finds out straight away whether it belongs there.
Match terms with definitions
The classic pairing drill. Works for vocabulary, formulas, symbols, legislation — anything with a one-to-one mapping.
Choose the best response to a scenario
One short situation, three defensible options. The teaching is in what you say after they choose, not in the choosing.
Reveal questions from mystery boxes
A grid of hidden prompts uncovered one at a time. The same questions you would have asked, with a reason to keep going.
Beat the clock answering five questions
A countdown turns recall into recall under pressure, which is usually the thing you actually wanted them to practise.
Your Task
Think of one tiny concept you teach. If you aren't sure how to turn it into an app, ask ChatGPT, Claude, or Gemini for help:
"I want to build a small interactive web app for my students to practise [CONCEPT]. Give me 3 ideas that are extremely small in scope: one screen, no logins, no databases, no connections to other services. Just a simple interactive experience a student can finish in a few minutes."