Year 11
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Lesson details
Key learning points
- In this lesson, we will move on to the next big programming construct: selection. We will be introduced to it initially through a flowchart that demonstrates how a condition can be used to control the flow of execution in a program. We will then learn about definitions for logical expressions and conditions. A short activity has been included to allow us to grasp how logical expressions evaluate. Next, we will complete a PRIMM activity where we investigate and modify a chatterbot.
Licence
This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.
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4 Questions
Q1.
What is the evaluation of this expression: 10 * 10 / 5
100
2
50
Q2.
What is the evaluation of this expression: 5 - 2 + 6 / 2
3
4.5
9
Q3.
If you were using integer division, what would be the evaluation of this expression: 14//3
2
42
5
Q4.
If you were using modulo, what would be the evaluation of this expression: 14%3
1
3
42
3 Questions
Q1.
Which flowchart symbol is used to show a decision?
Circle
Oval
Parallelogram
Q2.
Will this logical expression evaluate as True or False? (5-2+10/2) == 8
False
Q3.
What will be the output of this program when it is executed?
20
score > 30
You won!