Eleven picture quizzes. This is pure fact learning, which is exactly what spaced repetition is best at, so every miss comes back on a schedule.
Geography
- Flags โ 23 countries, with the capital shown after each answer
- Find the flag โ the same pairs the other way round: the country is named and the flags are the answers, which is the harder direction
- Continents โ where in the world that country sits
- Capital cities โ Warsaw, Paris, Tokyo, Nairobi
- Polska โ the Wisลa, the Tatry, Rysy, Mazury, Gdaลsk, Toruล
Nature and science
- Animal groups โ mammal, bird, fish, reptile, amphibian, insect
- Where they live โ forest, sea, farm, desert, pond, ice
- The body โ heart, lungs, brain, bones, nose, tongue
- Space โ the Sun, the Moon, Saturn, comets, satellites
Why these come back
A fact answered correctly moves up a box and returns in one day, then three, then seven, then twenty-one. A miss drops it to the first box. It retires only after three correct answers spaced three weeks apart. That is the whole algorithm: five Leitner boxes, simple enough for a parent to check.