Review: Turtle Drawing #

Welcome to Year 2 CS! We hope you’re excited for what we have planned this year 😄

Let’s review by taking it back to Turtle drawings!

[0] Set up #

Now that you’re in Year 2 you need a new unit folder.

💻 Start by opening your Terminal!

💻 In the Terminal, go into your making_with_code folder and create a unit03_networking folder. If you no longer have a making_with_code folder, you will need to create one.

cd ~/desktop/making_with_code
mkdir unit03_networking
cd unit03_networking

💻 Then, clone your starter code. Be sure to change yourgithubusername to your actual Github username.

remember: tab autocompletes in the Terminal

git clone https://github.com/the-isf-academy/lab_turtle_review_yourgithubusername

💻 cd into the lab

cd lab_turtle_review_yourgithubusername

👾 💬 Windows Users
We suggest not copying the path command, and instead using cd and ls to ensure you are in the correct making_with_code folder.

💻 Install Tkinter We’ll need this for our drawings.

brew install python-tk

💻 Enter the Poetry Shell. Remember, we run this command at the start of each lab, but only when we are inside a lab folder.

poetry shell

👾 💬 Exiting the poetry shell
When you want to exit the shell, you can type exit or ^D

[1] Create a Turtle Drawing #

💻 Run the Python file

python turtle_drawing.py

💻 Open the code. The . opens the entire folder.

code .

💻 Using the starter code in turtle_drawing.py create a drawing that includes at least 3 of CS concepts below:

A Few Helpful Functions #

🌈 Explore color options here

Function	Input	Example Use	Explanation
forward	amount	`forward(100)`	Moves the turtle forward by the specified amount
backward	amount	`backward(100)`	Moves the turtle backward by the specified amount
right	angle in degrees	`right(45)`	Turns the turtle clockwise by the specified angle
left	angle in degress	`left(45)`	Turns the turtle counter clockwise by the specified angle
color	colorname	`color('red')`	Sets the color for drawing. Use “red”, “black”, etc. Here’s a list of all the colors.
speed	number from 0-10	`speed(0)`	Determines the speed at which the turtle moves around the window. 1 for slowest, 3 for normal speed, 10 for fast, 0 for fastest.
pendown	None	`pendown()`	Puts down the turtle/pen so that it draws when it moves
penup	None	`penup()`	Picks up the turtle/pen so that it doesn’t draw when it moves
pensize	width	`pensize(4)`	Sets the width of the pen for drawing
setheading	angle	`setheading(90)`	Sets the pen to the 0th degree
circle	size	`circle(10)`	Sets the radius of the circle
goto	x, y	`goto(90,0)`	Moves turtle to a given coordinate
begin_fill	None	`begin_fill()`	Marks the start of the color fill
end_fill	None	`end_fill()`	Marks the end of the color fill
fillcolor	colorname	`fillcolor('purple')`	Sets the color of the fill

[2] Deliverables #

⚡✨
🤔 Remember, at the end of each class we push to Github
💻 Push your work to Github:
git status
git add -A
git status
git commit -m “describe your drawing and your process here”
be sure to customize this message, do not copy and paste this line
git push