1. Year 7 Computer Science Digital Portfolio
Name:
Class:
Teacher:

2. Contents
Lesson 1 – Pixels and Image Representation Lesson 2 – Image Sizes and File Types Lesson 3 – Steganography and Moving Images Lesson 4 – Creating an Algorithm for Animation Lesson 5 – Sequence and Iteration in Animation Lesson 6 – Creating an Animation

3. L1 Pixels and Image Representation
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L1 Pixels and Image Representation
Definitions
Image Representation
What is a Pixel? What is Metadata? What is Resolution?
How does a computer system represent images? Image Representation Task Paste a screenshot of your image below.
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LO1: To identify key terminology; LO2: To explain how binary is used to represent images in a computer system; LO3: To create pixelated images using binary codes.

4. L2 Image Sizes and File Types
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L2 Image Sizes and File Types
File Sizes
File Types
Fill in the table below. Examples What is 3GB in MB? What is 2,000,000 MB in TB?
Match up the following files with their extensions.
Size
Unit
Smallest
Largest
An essay
A presentation
A still image
A song
A video
A moving image
A scanned document
PPT
MP4
GIF
JPEG/PNG
DOC
PDF
MP3
Multiply by 1000
Divide by 1000
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LO1: To identify image/file sizes and state whether they are high/low file sizes; LO2: To identify file types (for images and generic documents); LO3: To calculate file sizes and convert between units.

5. L2 Image Sizes and File Types
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L2 Image Sizes and File Types
File Sizes
File Types
Using the table on the previous slide, answer the following questions. What is 5GB in KB? What is 4,000,000 KB in GB? What is 0.3 TB in GB? What is 4.53 GB in KB?
Using Google, research the different file types for the following. Images Videos Music Word Documents
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LO1: To identify image/file sizes and state whether they are high/low file sizes; LO2: To identify file types (for images and generic documents); LO3: To calculate file sizes and convert between units.

6. L3 Steganography and Moving Images
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L3 Steganography and Moving Images
Steganography
Encrypting and Decrypting Messages
What is meant by ‘steganography’? What is meant by ‘encryption’? What is meant by ‘decryption’?
Go to You will need to download the images from RHSC Computer Science and then upload them to the website to decrypt the message. Write the message below. Extension Download some images from Google and add a secret message to them using the website above. Swap with the person next to you and try to decrypt their message. What did it say?
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LO1: To identify what is meant by the term ‘steganography’; LO2: To encrypt and decrypt messages in images; LO3: To explain real-world applications of steganography.

7. L4 Creating an Algorithm for Animation
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L4 Creating an Algorithm for Animation
Algorithm
LO1: To create an algorithm (flowchart) for an animation; LO2: To produce a Python program to demonstrate how the animation will run.

8. L5 Sequence and Iteration in Animation
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L5 Sequence and Iteration in Animation
Definitions
Storyboard
What is meant by ‘Sequence’?
What is meant by ‘Iteration’?
Scenarios
A person walking past a moving clock on a station platform.
A person running away from an animal.
Two animals chasing each other.
Create a ‘storyboard’ for the animation that we will be developing. A storyboard is like a ‘flipbook’ that shows the scenes and what happens between each scene. Make sure to include enough detail in your storyboard so that you can use it to create your animation!
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LO1: To identify key terms ‘iteration’ and ‘sequence’; LO2: To create a ‘storyboard’ for an animation.

9. L6 Creating an Animation
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L6 Creating an Animation
Pivot Animator Software
Using your storyboard from last lesson, create an animation for one of the previous scenarios.
Make sure to include enough detail and try to make it as realistic as possible.
Go to:
Start Menu
Computer Science
Pivot Animator
LO1: To develop an animation based on a flowchart and storyboard; LO2: To use Pivot Animator software.

10. Assessment Assessment Feedback Enter date…
Lesson
LOs
Achieved?
L1 Pixels and Image Representation
LO1: To identify key terminology.
LO2: To explain how binary is used to represent images in a computer system.
LO3: To create pixelated images using binary codes.
L2 Image Sizes and File Types
LO1: To identify image sizes and state whether they are high/low file sizes.
LO2: To identify file types (for images and generic documents).
LO3: To calculate file sizes and convert between units.
L3 Steganography and Moving Images
LO1: To identify what is meant by the term ‘steganography’.
LO2: To encrypt and decrypt messages in images.
LO3: To explain real-world applications of steganography.
L4 Creating an Algorithm for Animation
LO1: To create an algorithm (flowchart) for an animation.
LO2: To produce a Python program to demonstrate how the animation will run.
L5 Sequence and Iteration in Animation
LO1: To identify key terms ‘iteration’ and ‘sequence’.
LO2: To create a ‘storyboard’ for their animation.
L6 Creating an Animation
LO1: To develop an animation based on a flowchart and storyboard.
LO2: To use Pivot Animator software.
Teacher Comment Student Response