Topic
Topic Guide
Events and Commands
An event tells a program when to respond. Commands say what to do, and their order matters.
ScratchRoboticsRoblox
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Topic library
The ideas underneath games and machines.
A condition can check a quiz answer, change a traffic light, or redirect a robot patrol. These guides show how the same idea behaves in different projects.
Topic Guide A clear explanation with examples and common mistakesLesson and Projects Ways to put the idea to workComing later Ideas intended for later programs
11 topic guides
Start with a question. Follow it into a project.
Topic
Topic Guide
Coordinates and Movement
Coordinates give every place on the screen an address. Change x to move left or right; change y to move down or up.
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Topic
Topic Guide
Loops and Repetition
Loops repeat a group of commands. The programmer chooses what repeats, how often, and when it stops.
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Topic
Topic Guide
Conditions and Decisions
A condition is a question with a true or false answer. The answer decides which code runs.
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Topic
Topic Guide
Variables and State
A variable stores a value that can change. State records which set of rules currently applies.
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Topic
Topic Guide
Sensing and Collision
Sensing blocks report contact, colour, distance, button presses, and other changes a program can use.
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Topic
Topic Guide
Input and Output
Input enters a system. The code handles it, and an output makes the result visible, audible, or physical.
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Topic
Topic Guide
Debugging
Debugging begins with a precise difference: what should have happened, and what happened instead?
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Topic
Topic Guide
Sensors
A sensor measures something in the physical world and gives the program a value to read.
RoboticsAI
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Topic
Topic Guide
Feedback
In a feedback loop, a system checks the result of an action before deciding what to do next.
RoboticsScratchAI
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Topic
Topic Guide
Autonomy
An autonomous system selects actions from its inputs, rules, current state, and goal.
RoboticsAI
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How to use the library
Read just enough theory to make the next test useful.
Each guide explains the central logic, gives small examples, names common mistakes, and links to a lesson or project.
Coordinates and Movement includes a guide, lesson, guided project, Computer Lab projects, and a note for parents. Other topics connect to the parts of the program where they are most useful.