🐢 Step 1: Start a Trace Challenge

Each round provides a glowing outline to follow. Press Next Challenge when you are ready to try a new trace.

⌨️ Step 2: Choose How You Want to Code

Use text commands if you want a typing challenge, or drag-and-drop blocks if you prefer building programs visually. Both options support moves like forward, turns like left 90, and loops like:

repeat 4 [
  forward 50
  right 90
]

Switch between blocks and text at any time to see how both represent the same logic.

▶️ Step 3: Run, Observe, Improve

Click Run to watch the turtle follow your instructions. If the drawing does not match your plan, edit a block or command, then run again. You can reveal the answer for difficult tracings or load a new challenge to keep exploring.

Each attempt teaches you something: how loops reduce repeated code, how angles control direction, and how sequencing shapes the entire drawing.

🎨 Where Art and Logic Meet

Turtle coding blends creativity with structure. Choosing between blocks and text helps learners see that the core ideas—step size, turning, repetition—stay consistent no matter how the code is written.

📊 Feedback You Can See

As the turtle draws, the full path remains visible. Coverage scores in Trace Mode show how close your drawing comes to the target outline, turning each run into a clear, visual check on your thinking. Tiny adjustments to angles or repeats often lead to big improvements.

🗣️ Predict Before You Press Run

A powerful debugging habit is to say out loud: “The turtle will go forward, turn left, make a square, then return here.” Comparing your prediction to the actual result helps you understand your own instructions and refine your programs with confidence.

Turtle Trace Lab encourages experimentation: build a star, design a spiral, trace a house, or invent your own geometric art. Every run is a miniature coding adventure.