Lesson on Digital Images and Binary

Questions and Answers

What is the main focus of the first activity in the lesson?

Illustrating the ADC process

What is required for students to participate in the second activity?

Headphones and access to Audacity

What is the purpose of the knowledge organisers provided?

To help students revise analogue and digital data

What is the topic of the starter activity?

Retrieval practice from last week's learning Signup and view all the answers

What is the purpose of the self-checker tool?

To help students audit their understanding of digital concepts Signup and view all the answers

What is the focus of the in-class activity on Slide 9 and 10?

Measuring and storing data Signup and view all the answers

What is the additional activity that requires students to do?

Convert a file size into a different unit Signup and view all the answers

What is the relevance of the revision workbook in this lesson?

It adds content to the workbook from the previous lesson Signup and view all the answers

What is the main goal of Activity 1 in the digital images lesson?

To identify binary values based on certain colours Signup and view all the answers

What is the purpose of the self-checker tool in the digital images lesson?

To act as a skills audit for students Signup and view all the answers

What is the format of the alternative image provided in the digital images lesson?

PNG Signup and view all the answers

What is the purpose of Activity 2 in the digital images lesson?

To understand memory requirements for storing digital images Signup and view all the answers

What is the purpose of the knowledge organisers in the digital images lesson?

To provide a summary of key concepts related to bitmap, vector and compression Signup and view all the answers

What is the format of the original image in the compression activity?

PSD Signup and view all the answers

What is the purpose of the starter activity in the digital sound lesson?

To practise an exam-style question based on last week's learning Signup and view all the answers

What is the purpose of the quiz in Microsoft Forms in the digital images lesson?

To self-check understanding of the lesson Signup and view all the answers

Study Notes

Lesson Topic Structure

Digital Images

The lesson introduces students to binary and its meaning through a starter activity.
Three in-class activities:
- Activity 1: Identify binary values based on colors and complete a bitmap image.
- Activity 2: Understand memory requirements for storing digital images on computers.
- Activity 3: Compress a lossless image to lossy, identifying quality and size differences.

Digital Sound

Starter activity: Retrieval practice with an exam-style question on last week's learning.
Two in-class activities:
- Activity 1: Understand the difference between analogue and digital devices, illustrating the ADC process.
- Activity 2: Change sample rates to observe differences in quality and sound.

Measuring and Storing Data

Starter activity: Retrieval practice with an exam-style question on last week's learning.
One in-class activity:
- Understand different units of digital data and their sizes, converting file sizes between units (e.g., MB to GB).

Resources and Assessment

Self-checker tool: Quizzes in Microsoft Forms for each lesson.
Knowledge organisers provided for each topic: Bitmap, Vector, Compression, Analogue and Digital Data, and Measuring and Storing Data.
Revision workbook provided with teacher and student versions.