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

Sequencing

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:

1. use toothbrush to clean teeth
2. put toothpaste on toothbrush
3. rinse toothbrush

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.

---

---

Activity 1 - What is a sequence?

Lets try the following tasks:

Tick each task when you have successfully done it in the following list:

---

---

Extension Activity

---

---

Add a screenshot of your scratch cat into your PowerPoint.

---

Lets try the following tasks:

Tick each task when you have successfully done it in the following list:

Summing it all up

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:

1. Import a background or sprite from the library provided by Scratch.
2. Import a sprite file from your computer.
3. Import a graphics file for use as a backdrop or costume, and then use the costume to create a sprite.
4. Draw your backdrop or costume using the drawing tools provided by Scratch, and use costumes to create your sprite.

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.

---

Lets try the following tasks:

Tick each task when you have successfully done it in the following list:

---

---

See if you can now make your own animated sprite, by creating costumes for a new sprite. You don't have to be an artist just create something simple.

---

---

---

Add a screenshot of your scratch cat into your PowerPoint.

Summing it all up

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