Create an algorithm for a text-based program
Lesson details
Learning outcome
I can create a program in a text-based language.
Key learning points
- An algorithm can be used to guide the design of a program.
- Algorithms are written to plan a program's outcome.
- Code can be based on algorithms to produce an outcome.
Keywords
Debug - finding and fixing errors in a program
Syntax - the rules about how a programming language should be written
Algorithm - a precise set of ordered steps which can be followed by a human or a computer to do a task
Common misconception
If the program runs, it must be correct.
Explain that a program can run but still be wrong if it doesn’t match the intended outcome. Debugging ensures accuracy.
Teacher tip
You will need to be able to access and demonstrate the version of Logo that you are using. It would be helpful to already be familiar with the basic Logo commands introduced in this lesson.
Equipment
Pupils need access to a device with software that can execute Logo programs. Examples in this lesson use FMSLogo https://oak.link/fms-logo
Licence
Lesson video
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Prior knowledge starter quiz
6 Questions
Q1.What is a program?
Q2.What does a command do?
Q3.What is a screen turtle?
Q4.What happens if you change the value of a command?
Q5.What is a series of defined logical steps that can be followed to solve a problem?
Q6.What is the abbreviation for the command that lifts the pen so the turtle moves without drawing?
Assessment exit quiz
6 Questions
Q1.Match the terms with their purposes.
ensures the program runs correctly
guides the design of a program
ensures the code is written correctly
Q2.What is debugging?
Q3.What is a syntax error?
Q4.What command moves the turtle back to its starting position?
Q5.Which direction is the turtle facing when the program starts?
Q6.If a program runs, does it always mean it is correct?
To help you plan your 4 computing lesson on: Create an algorithm for a text-based program, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your 4 computing lesson on: Create an algorithm for a text-based program, 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 2 computing lessons from the Repetition in programs unit, dive into the full primary computing curriculum, or learn more about lesson planning.