CP455 Teaching programming using Scratch and Scratch
Jr
Transcript: Using Scratch: Code blocks
Welcome to this introduction to Scratch. In the video, we're going to explore how
Scratch is structured, focusing on its coloured code block categories and key
features that will help you to create and share projects effectively.
So this is the online version of Scratch if I go to create. Let's have a look in a little
bit more detail and have a look at what the interface is like. On the right-hand side
here is the stage. This is where all the action happens to the sprites. And you can
see we've got the cat Sprite here.
This area on the left-hand side are the colour-coded block categories. And this
area in the middle is where we drag the code to make our sequences of code to
be run. So let's go through a little bit more about what the different colour block
categories are. They're grouped by colour as you can see down the left-hand side.
So the top one we have is the motion one, which is blue, which allows you to
move and turn your sprites. Moving on, the purple looks area is where you can
change appearance and also add speech bubbles. The next one we're going to
look at is the sound area, which is pink. It allows you to play sounds and also to
actually control the volume.
The next one is the events area which is yellow. It allows you to start code with
events like when the green flag is clicked. Now that is a popular one that we use
when we always start off coding so bear that in mind in future. Then we move on
to the orange, which is the control, where loops and conditionals for programming
logic are.
The next one is the sensing block, which is light blue. This detects movements of
the mouse, key presses, and different interactions. The next one is the operators,
which is green, and that deals with maths, logic, and comparisons. The darker
orange here is variables where you can store numbers and text, and that's used
for when you're doing scores in games and there's lots of other uses for it as well.
The final one that we're going to look at for now is the My Blocks where you can
make your own custom blocks that you can create. I'm actually going to show you
where you can add some more different coloured blocks by clicking on this purple
© STEM Learning Ltd.
area at the bottom. So this will take you online. If I click the plus, it will take me to
the Scratch extensions and we can select which ones we want to add on for the
activity that we're going to do. So it could be that we want to draw in Scratch. So
you would click the pen and you'll see that it's brought a pen palette up at the
bottom here.
© STEM Learning Ltd.
0
