Simplicity |
Map mounted on 4 × 4 post |
Map mounted on case with closed edges so that cane would hit edges (vs. 4 × 4 post that would result in child hitting the edge of the map before the cane touched the post) |
Map colors |
Matches playground colors |
Use high contrast colors that students with visual impairment were most likely to be able to distinguish (yellow and red) |
Tactile patterns |
Make patterns as similar to actual feel as possible (for example, gravel is tightly packed) |
Space out tactile patterns so that children read the map quickly (the children would stay focused on tightly packed symbols) |
“Angle of offering” for map |
Zero degrees from horizontal (same plane as playground) |
Test the best angle of offering; zero is not easy for children to use (30° from horizontal was optimal for students) |
Height difference of map user |
Anthropometrics and standards |
Yes to engineering aspects, but for LSVI students, using stepstools was a critical learning element, so a hole for pull out step stool was added to map stand |