Programming with Scratch

Turning events, sequence, loops, conditions, variables, clones and messages into an interactive story or game with readable blocks.

Completion evidence: Scratch project, block explanation, bug example, user test and remix/licence note.

Build one game mechanic; draw sprite and event flow first, then code it, test with one user and improve one variable.

The order is recommended. Before a project page, complete evidence from foundation, practice and debugging lessons.

Turning events, sequence, loops, conditions, variables, clones and messages into an interactive story or game with readable blocks. A correct example alone is therefore insufficient. Completion evidence should be scratch project, block explanation, bug example, user test and remix/licence note, tested with normal, boundary and invalid inputs.

In the first cycle, pair foundation and application among Simple Physics: Speed, Gravity and Collision, Variables and Lists, Looks, Sound and Events, Motion and the Coordinate System, Debugging and Testing. Predict the result, run or measure it, then explain any difference. Even when prediction and reality match, state which changed condition would break the result.

In the second cycle, complete this laboratory: Build one game mechanic; draw sprite and event flow first, then code it, test with one user and improve one variable. Do not close with one successful screenshot. Keep the input table, expected behaviour, actual behaviour, error or measurement and the correction in one file.

In the final cycle, connect Project: Maze Game, Project: Robot Mission Simulation, Score and Levels in Game Design, The Scratch Interface and Your First Project, Loops in Scratch. Let one lesson's output become another lesson's input; show where safe stopping is needed when data type, unit, wiring, timing or user expectation changes.

Repeat the same task one month later with less source support. Compare not only speed or appearance but test coverage, explainability, safety and whether another person can rebuild the work.

Use the foundation produced in Simple Physics: Speed, Gravity and Collision as an input to Broadcasting Messages and Managing the Stage. Then show in Loops in Scratch how the same idea changes under the limits of a larger system. This bridge carries the goal of turning events, sequence, loops, conditions, variables, clones and messages into an interactive story or game with readable blocks. beyond one isolated example.

Add three columns to the scratch project, block explanation, bug example, user test and remix/licence note file: knowledge carried from the previous lesson, condition changed in the new lesson and result observed in testing. Sharing a word does not establish a connection; one lesson’s output should genuinely become the next process’s input.

Test the connection through this laboratory: Build one game mechanic; draw sprite and event flow first, then code it, test with one user and improve one variable. After the first attempt, add an edge condition such as empty data, wrong type, disconnected input, extreme value or user error. Record whether the system remains understandable and safe beyond the normal example.

• Name the previous lesson output
• State the one changed condition
• Separate expected and actual result
• Define safe stopping or error feedback
• Make one change in the second version