The document introduces the turtle module in Python which allows users to draw pictures on a screen using a turtle. It explains how to import the turtle module, create a turtle object, and use methods like forward(), left(), right(), etc. to move the turtle and draw shapes. Some key turtle methods introduced are forward() to move the turtle forward, left()/right() to turn the turtle, reset() to clear the drawing and return to the initial position, up()/down() to lift or lower the pen. The document provides examples of using these methods to draw simple shapes like a square and demonstrates how turtle can be used to teach computer drawing concepts.

1. Little Coder Program
by

2. Drawing with TurtlesChapter 4

3. Turtle in python
• A module in Python is a way of providing useful code to be used by another
program. We’ll learn more about modules later on.
• Python has a special module called turtle that we can use to learn how
computers draw pictures on a screen.
• In the world of Python, a turtle is a small, black arrow that moves slowly
around the screen
Turtle in real world Turtle in Python

4. Lets start drawing by turtle module

5. >>> import turtle
We are asking python to import a
module named ‘turtle’ so that we
can use the functions and variables
written inside it

6. >>> import turtle
>>> t = turtle.Pen()
we need to create a
Canvas - a blank space to draw on,
like an artist’s canvas. To do so,
we call the function Pen from the
turtle module, which automatically
creates a canvas.

7. >>> import turtle
>>> t = turtle.Pen()
>>> t.forward(500)
The forward instruction tells the
turtle to move forwardby 50 pixels,.

8. >>> import turtle
>>> t = turtle.Pen()
>>> t.forward(500)
>>>t.left(90)
The left() will turn the turtle 90
degree

9. >>> import turtle
>>> t = turtle.Pen()
>>> t.forward(50)
>>>t.left(90)
>>>t.forward(50)

10. >>> import turtle
>>> t = turtle.Pen()
>>> t.forward(50)
>>>t.left(90)
>>>t.forward(50)
>>>t.left(90)

11. >>> import turtle
>>> t = turtle.Pen()
>>> t.forward(50)
>>>t.left(90)
>>>t.forward(50)
>>>t.left(90)
>>>t.forward(50)

12. >>> import turtle
>>> t = turtle.Pen()
>>> t.forward(50)
>>>t.left(90)
>>>t.forward(50)
>>>t.left(90)
>>>t.forward(50)
>>>t.left(90)

13. >>> import turtle
>>> t = turtle.Pen()
>>> t.forward(50)
>>>t.left(90)
>>>t.forward(50)
>>>t.left(90)
>>>t.forward(50)
>>>t.left(90)
>>>t.forward(50)

14. >>> import turtle
>>> t = turtle.Pen()
>>> t.forward(50)
>>>t.left(90)
>>>t.forward(50)
>>>t.left(90)
>>>t.forward(50)
>>>t.left(90)
>>>t.forward(50)
Yaay !! You have successfully drawn a square !!

15. >>> import turtle
>>> t = turtle.Pen()
>>> t.forward(50)
>>>t.left(90)
>>>t.forward(50)
>>>t.left(90)
>>>t.forward(50)
>>>t.left(90)
>>>t.forward(50)
>>>t.reset()
Reset function will erase your drawing and
set the turtle to the initial position

16. >>>t.reset()
>>>t.right(120)
>>>t.forward(50)
You can use the right function similar
to left

17. >>>t.reset()
>>>t.right(120)
>>>t.forward(50)
>>>t.backward(100)
Backward function act just in the
opposite direction of forward

18. >>>t.reset()
>>>t.right(120)
>>>t.forward(50)
>>>t.backward(100)
>>>t.left(60)
>>>t.up()
>>> t.forward(50)
>>> t.down()
>>> t.forward(100)
We can use up to lift the pen off the
page (in other words, tell the turtle to
stop drawing), and down to start
drawing.

19. Exercise !

20. Exercise !

21. End of Chapter 4