Scratch - Decisions and branching
Scratch - Broadcasting and loops
Scratch - Interactive programming
Before we get started we need to do a couple of things
Firstly click on the PowerPoint below add your name to it and save it
Secondly we need to create a Scratch account
You can do that by clicking on the link below
In computer science 'Sequencing' is the specific order in which instructions are performed in an algorithm..
It is crucial that the steps in an algorithm are performed in the right order - otherwise the algorithm will not work correctly. Suppose the steps for the teeth-cleaning algorithm were in this sequence:
A toothbrush would still be used to clean the teeth and toothpaste would still be put on the brush. But because steps 1 and 2 are in the wrong sequence the teeth wouldn’t get cleaned
with the toothpaste, and the toothpaste would be wasted.
A human would realise they had forgotten to add toothpaste at the start of the process, but a computer would not know that anything was wrong.
A computer can only do what it is programmed to do. If the steps are programmed in the wrong sequence, the computer will perform the tasks in this sequence – even if this is incorrect.
Tick each task when you have successfully done it in the following list:
Lets look at the learning outcomes and decide which one best describes our current level of understanding :
Tick the one you feel is closest to your level
In Scratch, the backdrop and sprites are assets. Assets also include costumes and sounds, which you can add to your sprites.
To create a background or a
sprite, you can do one of four things:
In this tutorial, we will work through a new project and use each of these techniques in different ways.
We are going to create a sprite to look something like the one below.