Blocks4All: Overcoming Accessibility Barriers to Blocks Programming for Children with Visual ...
summary
Evaluates nine blocks environments and identifies five accessibility barriers for visually impaired children, then tests fixes with one teacher and five children on an iPad controlling a Dash robot. Implements high-contrast resizable icons, screen reader labels (block identity, position, hints), audio type cues (high/low beeps) and a select-then-place interaction replacing drag-and-drop. Children complete programming tasks and feel the robot to confirm output, showing the approach works and is ready for beta testing.
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chapters (8)
- 0:00Introduction to Blocks4All
- 1:52Accessibility barriers in blocks programming
- 5:31Design exploration with children
- 7:37Making blocks accessible
- 9:42Moving blocks with screen readers
- 12:37Conveying block type information
- 15:35Children's feedback and success
- 16:38Q&A on future accessibility
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