Operators
Lesson details
Learning outcome
I can create complex conditions using comparison and logic operators.
Key learning points
- Comparison operators can be used to compare values in expressions.
- Logical operators can be used to compare multiple comparison expressions.
- Selection statements can combine comparison and logical operators to build complex conditions.
Keywords
Comparison operator - an operator that is used to compare one value to another
Condition - an expression that evaluates to True or False
Logic operator - an operator used in a logical expression, for example, AND, OR and NOT
Common misconception
Selection statements can only check one condition at a time.
Complex conditions can be built into selection using a combination of comparison and logical operators. Logical operators join separate conditions and provide one complete statement that still evaluates to only True or False.
Teacher tip
Programming allows pupils to adapt what they produce to suit their own interests. Once pupils have made the quiz as specified in the slide deck, encourage them to include questions that they would enjoy answering.
Equipment
Pupils will need access to a device with block-based programming software. Examples in this lesson use Scratch https://oak.link/scratch
Licence
Lesson video
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Prior knowledge starter quiz
6 Questions
Q1.Which block is used to carry out selection in Scratch?
Q2.What can the result of an expression be?
Q3.Which operator block would you use to check if the value of the score variable is 10?
Q4.Which of these blocks would you use if you want an operation to happen if the expression evaluates as False?
Q5.In which block category can you find the if block?
Q6.In which block category can you find this block?
Assessment exit quiz
4 Questions
Q1.A operator is used to compare one value to another.
Q2.The logical expression 'AND' returns True when...
Q3.The logical expression 'OR' returns True when...
Q4.Logical operators and comparison operators can be combined to build complex .
To help you plan your 7 computing lesson on: Operators, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your 7 computing lesson on: Operators, download all teaching resources for free and adapt to suit your pupils' needs.
The starter quiz will activate and check your pupils' prior knowledge, with versions available both with and without answers in PDF format.
We use learning cycles to break down learning into key concepts or ideas linked to the learning outcome. Each learning cycle features explanations with checks for understanding and practice tasks with feedback. All of this is found in our slide decks, ready for you to download and edit. The practice tasks are also available as printable worksheets and some lessons have additional materials with extra material you might need for teaching the lesson.
The assessment exit quiz will test your pupils' understanding of the key learning points.
Our video is a tool for planning, showing how other teachers might teach the lesson, offering helpful tips, modelled explanations and inspiration for your own delivery in the classroom. Plus, you can set it as homework or revision for pupils and keep their learning on track by sharing an online pupil version of this lesson.
Explore more key stage 3 computing lessons from the Using fundamental programming constructs in a block-based language unit, dive into the full secondary computing curriculum, or learn more about lesson planning.