Kōkiri Lab
Kōkiri Lab

Robotics & Systems · Lesson 2 of 8

Run 1, one change and Run 2

Look closely · Collect evidence

VOICE Observe · Evidence

Today's goal

Run a fair baseline test, record every result honestly, and use the evidence to choose and test one change.

By the end

Run 1 and Run 2 recorded, with one change and a reason.

What we'll do (60 minutes)

  1. Class check: axles turn freely, the start line is taped, and the number of winds is agreed.5 min
  2. Run 1: three trials, nothing changed between them. Record every result honestly, including a zero.15 min
  3. Pause and think: enter Run 1 in Kōkiri Lab, choose one change with a reason that points back to a specific result, and predict its effect.12 min
  4. Make the one change.5 min
  5. Run 2: three trials with the change made. Record on paper.15 min
  6. Record Run 2, discuss why three trials of the same car can differ, and pack away.8 min

Need a hand?

A pre-printed results table and a change chosen from a picture list: "In Run 1 I noticed ___, so I will change ___ because ___."

Want a challenge?

Also record how straight the car travelled as a second measure, and explain why identical trials can still differ.

Try this lesson

AI this lesson

Kōkako, your AI mentor: Asks you one question at a time, such as “Is your test fair? What stayed the same?”. It never tells you the answer or whether you are right. You: Decide what to change and what to keep the same.