- Hi again! Every day I bring you five little questions. A bus stop, a coffee queue. Three minutes is plenty. All five done. You're sharper than you were this morning. About three minutes. Short enough for a bus stop, steady enough to stick.
- This is my favourite part. Oops, not that one. That's completely okay. A wrong answer is where I teach: the rule, an example, a picture. There. Now you won't forget it. The rule in a line, a real example, and often a diagram that shows it happening.
- You don't start from zero. We start where you are. Already know Intermediate? Show me once... ...and skip right ahead. Told you. Topics come in order, from the basics up. Already good? Test out of a level in one go.
- Come back tomorrow and I light you a little flame. Busy day? A freeze keeps it safe. You earn one every week. A month in, it burns blue. A hundred days, purple. A whole year? It wears a crown. So do you. A week, a month, a hundred days: it changes as your streak does.
- Join a league on a skill. Same questions for everyone. Every round you play, you pass someone. First place? The pot is yours! Join a public league or make one with friends. One round a day; the most points wins the pot.
- Psst. Sometimes I hide a chest on your path. Tap it! Each tap might make it rarer. Epic! Coins, XP and double-XP time. You earned every bit. Tap to upgrade, then open it for coins, XP and double-XP time.
Hi again! Every day I bring you five little questions.
About three minutes. Short enough for a bus stop, steady enough to stick.
3:00
React5/5What does a key help React do in a list?
Tell items apart
Sort the items
Microsoft Excel4/5
Which function finds a value by its row and its column?
XLOOKUPSUMIFSQL3/5
Which clause filters groups after GROUP BY?
HAVINGWHERE
Python2/5What does len({1, 1, 2}) return?
2
3
CSS1/5Which position keeps an element in the flow, then sticks it as you scroll?
stickyfixedSet done
+50 XP
