Five Whys
keep asking until you reach the cause of the problem
1 · the problem looks clear, but nobody knows why it exists · ± 11 min · pairs
Interview in Three Rounds
interview each other, then report to your four
1 · the class practises the questions for the user · ± 12 min · fours
Inner & Outer Circle
short conversations, each with someone new
1 · gather many experiences of the problem quickly · ± 13 min · whole class, 10–36
Placemat
each writes alone, the middle holds what the team shares
2 · the requirements the whole team stands behind · ± 13 min · 4 per sheet
Think, Write & Share
each writes requirements, the team merges one list
2 · a long list first, then choose · ± 16 min · 2–6, default 4
Written Thoughts
one idea per slip, said aloud, then ranked
3 · many ideas, and everyone contributes · ± 19 min · 2–6, default 4
The worst plan
work out how the design would surely fail, then flip it
3 · the ideas are tame, or nobody sees the risks · ± 19 min · alone or groups up to 8
Snowball (1-2-4-All)
alone, in pairs, in fours: ideas build on each other
3 · everyone has an idea before the team chooses · ± 18 min · 8–32
Gallery Walk
teams lay out their sketch, the rest give feedback
4 · look at the sketches before anything is built · ± 30 min · 2–8 teams
Pair Coach
A works it out aloud, B coaches, then switch
4 · work out the proposal: sizes, materials, cost · ± 16 min · pairs
Daily Scrum
one minute each: done, next, where I am stuck
5 · at the start of every build lesson · ± 7 min · teams of 2–8
Pomodoro: get to work
work in blocks, with real breaks between them
5 · a long build lesson that would otherwise drift · ± 40 min · whole class at once
Predict – Observe – Explain
predict first, then watch in silence, then explain
6 · the test becomes an experiment with a prediction · ± 17 min · alone, then pairs
Error hunt
find the one error in a worked solution and explain why
6 · check the calculation behind the design: where did it go wrong? · ± 14 min · alone, then pairs
1 goes, 3 stay
one member visits, three explain their design
7 · every team presents, without a row of presentations · ± 20 min · teams of 4
World Café
conversation at tables, moving on after each round
7 · what the class takes into the next project · ± 45 min · tables of 3–6
Taking Turns
everyone gives one answer in turn
7 · the last round: one thing you would do differently · ± 12 min · 2–6, default 4