Why does it still show "Start" after I click No for the K-12 Instructional materials and supplies question?

I think you are talking about the teacher deduction for supplies and materials.

I could not reproduce this effect; however, if you don't have any information posted it will not make any difference on your tax return.

If you do have something entered it will be included on line 10 of your tax return (adjustments to income Schedule 1).

To see your tax return:

1. On the menu bar on the left that shows.
   1. My Info
   2. Federal
   3. State
   4. Review
   5. File
2. Select Tax Tools
3. On the drop-down select Tools
4. On the popup menu
5. Select View Tax Summary
6. On the left sidebar

Select Preview my 1040