SPIN 101: Explain One Spin with Three Paper States

SPIN 101 for a complete beginner: follow a paper demonstration from chosen settings to one action and a recorded result, without guessing app features.

Three slips, one demonstration

The first useful lesson about a spin is small enough to fit on three slips of paper. Label them BEFORE, ACTION and AFTER. A beginner should be able to describe what changes between those slips before watching a fast animation. In this SPIN 101 explanation, we use an invented classroom model with three windows and picture tokens. It describes a learning exercise, not the features of a named app.

Put the BEFORE slip on the table. Draw three empty windows, write “practice example A” above them, and place a token beside a box labelled READY. Separately write the example rule: three matching pictures receive one mark; every other arrangement receives zero. The rule belongs beside the starting state because the learner needs it before interpreting a result. No amount, reward offer or actual platform setting is implied by our marks.

Ask the learner to read the starting state aloud: “Example A is selected, the windows are empty, and the model is ready.” This sentence identifies the selected exercise, the visible area and the current status. If the learner instead says “I have already started”, point to the absence of an action record. A selected example and a started example are different states even when they share almost the same drawing.

Record the action

Now introduce the ACTION slip. Write exactly one instruction: “Press START once.” Move the status token from READY to RUNNING, and place a single tick beneath the instruction. The tick is our record of an input; it is not the outcome. This is a useful pause in a demonstration because a viewer can otherwise mistake the beginning of movement for a completed result or overlook how many inputs the demonstrator made.

For the AFTER slip, draw leaf, leaf and star in the three windows. Move the token to COMPLETE. Apply the example rule to the whole arrangement: two matching pictures do not meet a requirement for three matching pictures, so the recorded result is zero marks. The word COMPLETE says that the exercise has ended. It does not say that the matching condition was met. These two readings need separate sentences.

Keep all three slips visible and tell the story backwards. The final windows explain the mark; the action tick explains what started the change; the first slip shows which example was selected. This reverse explanation often reveals a missing step. If someone cannot explain why the pictures changed, restore the ACTION slip instead of adding more colourful pictures. A clear lesson needs an observable link between an input and the displayed state.

Change only the result

A second paper result can test understanding without inventing another rule. Leave the BEFORE and ACTION slips unchanged, but replace the AFTER slip with star, star and star. Under our stated model, that arrangement receives one mark. Ask what stayed the same and what changed. The answer is the selected exercise and single action stayed the same; only the result pictures and derived mark changed. Neither demonstration predicts what would happen next.

When a SPIN 101 reader moves from paper to a real guide, the same three questions remain helpful: what is selected, which action starts one round, and where is the settled result explained? The labels may differ, and some guides may show additional stages. Copy the actual labels into the slips rather than assuming a button called START exists. Treat any unanswered question as a gap in the explanation, not an invitation to guess.

We also ask the teacher to hide the AFTER slip for a moment. Can the learner identify the starting condition and demonstrate the one input without claiming a result? Then hide BEFORE and ask whether the remaining picture proves which options were selected. Usually it cannot. This short exercise teaches the limits of a screenshot: an end picture may show an arrangement while leaving the chosen settings and preceding actions unknown.

A completed SPIN 101 note can now be read as a miniature story: example A selected; START pressed once; leaf–leaf–star displayed at COMPLETE; three identical pictures required for one mark. Ask the learner which slip explains the zero. The answer is the AFTER slip read alongside the rule, not the action tick alone. When those two pieces fit together, the beginner has understood one complete demonstration without needing to memorise a fast sequence of moving pictures.