Make an Instruction Precise
Replace an unclear location with a testable drawing instruction.
Supplied materials
- Paper and pencil; an adult may read aloud. No device, account or purchase is needed.
Learn the idea
A person can ask what a vague instruction means, but an algorithm needs a clear rule. The instruction put a dot there does not name a place. In a paper test, two people could choose different places and both think they followed it. Naming inside, outside, above or below gives us something to check.
Our goal is one circle with one dot below it and no dot inside. Draft: draw a circle; draw a dot; stop. The draft says how many dots but not where. Replace the middle step with draw one dot below the circle. The goal tells us which location to choose.
- Draw the goal picture or describe it aloud.
- Follow the unclear draft once and notice that dot location is unspecified.
- Replace draw a dot with draw one dot below the circle.
- Test the revised instructions on fresh paper and check both count and place.
See the method in action
The revised drawing has one circle and one dot below it. A dot inside the circle has the right count but the wrong location, so checking only the count would miss the problem.
Check your reasoning
Your answer is temporary and is not saved to an account. Download your current answer before leaving or reloading. Written work on paper or in another app stays in your own file.
See the answer and explanation
Draw one dot above the square
The instruction names both the number and the required position. Inside and below are precise but do not match this goal.
Take it further
Change the goal to one square with two dots outside it. Expected middle instruction: draw two dots outside the square. Testing should produce two outside dots and none inside.
Nothing here is saved to an account or sent to a teacher. The answer download includes your current choice and any checked feedback.
Check the subject sources
These LifeStarter passages, scenarios and exercises are authored for this Academy with AI assistance and review. External resources keep their publishers’ terms. A grade label suggests a starting level; it does not establish alignment with your school’s complete requirements.