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App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 774 · 40 questions
TalentJR

Developer's tip (Design for everyone): Our rule: text is at least 16 px; every icon has a text label for screen readers. Add captions to videos; never use colour as the only clue. Big touch targets and strong contrast help everyone.

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  1. 1.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
  2. 2.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 26 px
    Label: 17 px
    Hint: 12 px
    Title: 16 px
    Menu: 16 px     (a) Title (b) Body text (c) Label (d) Hint
  3. 3.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 18 px
    Caption: 18 px
    Footer: 11 px     (a) Caption (b) Footer (c) Body text
  4. 4.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 13 px
    Footer: 13 px
    Hint: 10 px
    Title: 19 px
    Body text: 21 px
  5. 5.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 24 px
    Hint: 23 px
    Body text: 14 px     (a) Footer (b) Hint (c) Body text
  6. 6.♿ A screen has 12 icon buttons. Only 4 of them have a text label for screen readers. How many still need a label?
  7. 7.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 27 px
    Body text: 27 px
    Caption: 25 px
    Menu: 16 px
    Label: 10 px     (a) Body text (b) Caption (c) Label (d) Title
  8. 8.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 18 px
    Body text: 12 px
    Menu: 17 px
    Title: 18 px
    Caption: 18 px
  9. 9.Which of these helps everyone use the app? (a) icons with no labels (b) strong colour contrast (c) sudden loud sounds (d) colour as the only clue
  10. 10.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 10 px
    Menu: 19 px
    Body text: 25 px
    Label: 26 px     (a) Body text (b) Menu (c) Footer (d) Label
  11. 11.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
  12. 12.♿ A screen has 12 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
  13. 13.🔍 Which is the odd one out? (a) fast-flashing lights (b) icons with no labels (c) colour as the only clue (d) text that can grow
  14. 14.♿ What does a screen reader do? (a) makes text tiny (b) plays music (c) takes photos (d) reads the screen aloud
  15. 15.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 9 px
    Menu: 16 px
    Hint: 18 px     (a) Hint (b) Menu (c) Body text
  16. 16.♿ A screen has 10 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
  17. 17.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 21 px
    Body text: 21 px
    Label: 10 px     (a) Hint (b) Body text (c) Label
  18. 18.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 10 px
    Caption: 13 px
    Hint: 17 px
    Label: 16 px
  19. 19.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 15 px
    Hint: 19 px
    Body text: 16 px
    Footer: 18 px
    Label: 12 px
  20. 20.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
  21. 21.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 20 px
    Menu: 11 px
    Hint: 17 px
    Title: 19 px
  22. 22.True or false: “strong colour contrast” helps everyone use the app. (a) False (b) True
  23. 23.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 22 px
    Title: 24 px
    Hint: 11 px
    Footer: 18 px     (a) Body text (b) Footer (c) Hint (d) Title
  24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 9 px
    Body text: 22 px
    Caption: 25 px     (a) Body text (b) Caption (c) Title
  25. 25.🔍 Which is the odd one out? (a) fast-flashing lights (b) text that can grow (c) big touch targets (d) strong colour contrast
  26. 26.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 10 px
    Caption: 16 px
    Menu: 12 px
  27. 27.♿ A screen has 12 icon buttons. Only 9 of them have a text label for screen readers. How many still need a label?
  28. 28.♿ A screen has 9 icon buttons. Only 6 of them have a text label for screen readers. How many still need a label?
  29. 29.True or false: “captions on videos” helps everyone use the app. (a) False (b) True
  30. 30.♿ A screen has 10 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
  31. 31.🔍 Which is the odd one out? (a) captions on videos (b) labels on every icon (c) text that can grow (d) colour as the only clue
  32. 32.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Menu: 22 px
    Label: 10 px
    Footer: 15 px
    Hint: 11 px
    Caption: 20 px
  33. 33.♿ A screen has 12 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
  34. 34.♿ A screen has 12 icon buttons. Only 8 of them have a text label for screen readers. How many still need a label?
  35. 35.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 18 px
    Hint: 27 px
    Label: 26 px
    Body text: 10 px     (a) Label (b) Hint (c) Body text (d) Title
  36. 36.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
  37. 37.🔍 Which is the odd one out? (a) icons with no labels (b) labels on every icon (c) captions on videos (d) text that can grow
  38. 38.🔍 Which is the odd one out? (a) sudden loud sounds (b) tiny tap areas (c) fast-flashing lights (d) big touch targets
  39. 39.True or false: “text that can grow” makes the app harder to use. (a) False (b) True
  40. 40.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 23 px
    Menu: 20 px
    Hint: 12 px     (a) Hint (b) Label (c) Menu

Answer key

  1. makes it harder
  2. Hint
  3. Footer
  4. 3
  5. Body text
  6. 8
  7. Label
  8. 1
  9. strong colour contrast
  10. Footer
  11. True
  12. 11
  13. text that can grow
  14. reads the screen aloud
  15. Body text
  16. 2
  17. Label
  18. 2
  19. 2
  20. helps everyone
  21. 1
  22. True
  23. Hint
  24. Title
  25. fast-flashing lights
  26. 2
  27. 3
  28. 3
  29. True
  30. 8
  31. colour as the only clue
  32. 3
  33. 9
  34. 4
  35. Body text
  36. False
  37. icons with no labels
  38. big touch targets
  39. False
  40. Hint

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