In this lesson plan, students reorder sentences that present the principles of colour vision. Includes key vocabulary such as ‘retina’, ‘receptors’, perceive’, ‘rods’, ‘sensitive’ and ‘pigments’. A writing exercise introduces the notion of colour blindness/Daltonism, getting students to engage with a scientific text by punctuating it. A full key is provided giving not only the correct punctuation but a full explanation of the reasons behind it.


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