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Snap 2.1 using the pen
By Tamara O'Malley
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Last updated over 5 years ago
6 questions
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Getting started
Open Snap and save a new project as
2.1 using the pen
.
In each section below, complete the steps shown in the images and answer the questions that follow.
Pen experiment #1
Experiment with drawing with the pen as shown in the steps below.
📼 Here is an
ANIMATION
of the process.
Question 1
1.
Clearing the screen
Build a script that you can use to clear the screen with the click of a key.
📼 Here is an
ANIMATION
of this process.
Question 2
2.
Why is it important to put the GO TO block first, before the CLEAR block?
Pen experiment #2
Try the experiment below.
Question 3
3.
What does "hue" mean?
Pen experiment #3
Pen experiment #4
Question 4
4.
Question 5
5.
Draggable item
arrow_right_alt
Corresponding Item
arrow_right_alt
arrow_right_alt
arrow_right_alt
arrow_right_alt
What draws a line?
Experiment to see when the sprite will draw lines.
Question 6
6.
Adding comments
📼 Here is an
ANIMATION
of this process.
Pen experiment #5
Experiment a bit more with drawing. Clear the screen as necessary.
📼 This
ANIMATION
covers parts
b-d
below, and this
ANIMATION
covers part
f
.
Your own creation (turn in image in Canvas)
Now use what you know about the pen to
make a cool design of your own
.
Follow the steps below to save a picture of the stage, then turn in the image in Canvas.
What does the script do?
moves without drawing anything
draws a straight line
draws a square
draws a triangle
Which block is the most efficient to change / reset the pen size back to 1?
What is the difference between SET blocks and CHANGE blocks?
For some reason, these blocks are tiny. Click on a block to zoom in.
makes the pen size grow by 1 each time it is clicked
makes the pen size equal to 1 no matter how many times it is clicked
makes the pen a certain color (a sort of orange)
changes the pen color each time it is clicked
If the pen is down, when will the sprite draw a line? Choose all correct answers.
when it's dragged by the mouse
when the
move
block is clicked
when the
go to
block is clicked
