Lesson 11: Drawing with Turtle

Topics Covered:

• Installing and importing the turtle module
• Creating a turtle window
• Basic turtle movement commands: forward, left, right

What is Turtle Graphics?

turtle is a Python module that lets you draw by controlling a “turtle” that moves on the screen.

Installing Turtle

If you’re using standard Python, turtle is included by default. For online editors, check their documentation.

Basic Turtle Program

import turtle

t = turtle.Turtle()

t.forward(100)   # Move forward 100 pixels
t.left(90)       # Turn left 90 degrees
t.forward(100)

turtle.done()    # Keep window open

Basic Commands

• forward(distance): Move turtle forward
• backward(distance): Move turtle backward
• left(angle): Turn turtle left
• right(angle): Turn turtle right
• penup() and pendown(): Lift or put down the pen

Activity: Draw a Square

import turtle

t = turtle.Turtle()

for _ in range(4):
    t.forward(100)
    t.left(90)

turtle.done()

Challenge

• Change the square size
• Try drawing a triangle or hexagon