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Lesson 3 – Autumn Term 1 – Abstraction and Decomposition
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| Answer the following questions: (1) What is meant by initialisation? Where in a program does it occur? (2) Describe the key differences between a variable and a constant (3) When we output variables in an fString, what must we put around the variables? ————————– Additional ———————————– (4) Describe what is meant by assignment (5) Explain why a variable is called a variable |
🎯 Objectives:
(1) Be able to explain what is meant by the terms Abstraction and Decomposition
(2) Be able to identify Abstraction and Decomposition in real world scenarios
(3) Be able to apply Abstraction and Decomposition to different scenarios
The London Underground map is a good example of abstraction.
As you can see from looking at it, the lines and stations are the only major landmarks shown.
Trees, roads, buildings and all major landmarks (an important aspect of any trip to London) have all been removed.
This allows travellers on the London Underground to focus on exactly where they wish to get to.
Abstraction involves removing unnecessary detail from a problem so that you can focus on the essential components.
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| 1. Algorithms are used to create, display and store images, search data for a particular item, control robots and millions of other applications. State what is meant by the term algorithm. [1] |
| 1. Algorithms are used to create, display and store images, search data for a particular item, control robots and millions of other applications. State what is meant by the term algorithm. [1] |