Computing

Y9 Computing

Key Stage 3

Year 9

Representations: going audiovisual

In this lesson, we will create digital mosaics pixel by pixel, and experience how an image composed of individual coloured elements can correspond to a sequence of binary digits.

Binary Mosaic

In this lesson, we will explore the most common representation of colour as a mixture of red, green, and blue: the level of each of these colours in the mixture is represented using an 8-bit sequence. 


A splash of colour

In this lesson, we will use appropriate software to perform a range of image manipulation functions and complete specific tasks and challenges.

Collage

In this lesson, we will familiarise ourselves with the basic concepts necessary for understanding any analogue to digital conversion; samples, sampling rate, and sample size.

Good vibrations

In this lesson, we will revisit the digitisation process, in order to understand how the sampling rate and the sample size affect the size and quality of the representation. We will also use a sound editing program.

Sonic playground

In this lesson, we will be introduced to alternative (symbolic) representations for images and sound, such as vector graphics and MIDI music. We will also be introduced to what compression is and why it is necessary.

Key Stage 3, Computing, Representations: going audiovisual

Binary Mosaic

A splash of colour

Collage

Good vibrations

Sonic playground

Always another way