What a topic is and how it is represented and used within the app - see learning resourcesLearning Resources for a list of all of the topics.
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Some topics have only a few layers and others more e.g. ingredients currently has 3 layers and value of: index has 15 more index has 14 layers.
The skills/knowledge/methods from layer 1 are sometimes required for layer 2 and sometimes the skills/knowledge/methods for layer 1 is unconnected but easier than those for layer 2 e.g. in the topic calculator skills layer 1 is easier than layer 2 and layer 2 is easier than layer 3 however the skills and knowledge from layer 1, 2 and 3 are required to learn layer 4.
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The list of topics is found in learning resources Learning Resources and by clicking on any topic name you can find out about what is in each layer. The overview has a description for the teacher to use in planning and the sample has examples to use in teaching The practise-learn worksheets for each layer can be used for students to practise what they have learned.
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