:: Make groups of 4 to 6.
:: Look at the question at the centre of the cluster map.
:: Brainstorm for ideas and write them in the boxes.
:: Look at the cluster map you have just finished.
:: Classify the answers to the central question in three groups in the diagram below (you may want to add more words).
:: Read and comment the results of your last activity with your class.
:: Read and comment: 1. What is a Barrier?
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