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step4.1_Introduction to Accessible Images
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step4.2_General Rules to Write Image Descriptions
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step4.3_General Structure of Alternative Image Descriptions
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step4.4_Alternative Descriptions for Charts and Maths
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step4.5_Discussion - Write an Alternative Image Description
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step4.6_Excursus - Challenges to Create Tactile Graphics
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step4.7_Excursus - Tactile Drawing with the Sewell Raised Line
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step4.8_Excursus - Creating Tactile Graphics Cooperatively