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Section Title Primary information Description and Notes Suggested resources
Lesson Length The expected lesson length will be approximately one hour

Some variation possible.

Assessment Level 1

Students The lesson is suitable for KS3 and KS4 students Since this is a new specification, the lesson is suitable for Year 7 to 9 students and differentiated by outcome  
Overall Focus The lesson focus will consolidate what they have learned about variables with practical activities This lesson will allow students to practice and consolidate their knowledge

Lesson Links: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39

Key words algorithm, abstraction, programming language, instruction, open source, digital, file types, variable These words need to be reinforced throughout the series of lessons  
Assessment change variables in an algorithm and predict the effect Evidence here will be student's reflecting on what they understand and assessor observations  
Key Questions Some questions to get learners thinking about the topics Looking at the way variables are used in algorithms to make them work more efficiently Currency logo What examples can they think of to understand variables?  If they go on holiday, what variables are important when it comes to changing their money?  What variables do they need to think about for their life choices: more enjoyable job; more money?
Learning Objectives
  • To understand and use variables properly
  • To describe and explain, with examples, how variables affect outcomes
  • To understand how variables are determined and why they are important to understand
  • To understand the process of variables in prediction

Students need to see and try a number of systems with variables to see their impact and manipulation

If you are using the Learning Machine learning system, students can add their comments and material to this site as evidence of their growing understanding.  The site, if used consistently, will show progression via charts of activity and outcomes.
Teaching and Learning Elements
  • Introduce some examples of systems using variables that can be adjusted
  • A teacher led demonstration of variables and predictions
  • Students can break into groups and work on their own variables
  • Class discussion and evaluation of the wider uses of models for predictions
  • Summarize the key points and reinforce the importance of routines in good model

Students need to be shown some of the ways variables are used and how predictions depend on them in many areas.

Lesson Structure Possible structure
  1. introduce some examples of systems using variables
  2. show students some more detailed examples of variables and the results.  use some wide ranging data sets
  3. group work to work on some of their own
  4. discuss what they have learned and what they can apply
  5. volunteers to share their work and explain how they came to their final versions
  6. highlight next week's focus and issue homework

Look and use some of the sites already introduced and make notes.  What makes a good variable or a bad one?

Google logo This well known site uses a lot of algorithms.

How does it compare to this site Squiffy logo

AppGini logo This demo database site allows you to change lots of variables and do variable searches.

Homework Get students to write a comparison of 5 terms in Google and Squiffy.  Which is the best search engine?  Why? Students can vary their homework depending on their level of understanding Get students to document their recipes on their portfolio system for assessment


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