It should work. Without seeing the form it's hard to say why it isn't.
Does the user enter the result of their calculation?
If so, what are they?
Does the user enter the result of their calculation? No it a static number .. the whole file was converted from one of my Powerpoint lectures.
I then go to the arrow on the toolbar and try to run the item .. nothing
If so, what are they? There are no error that are displayed.
It is not a form .. just a static page that I converted from PowerPoint to give my students. they do the math on paper and then match the answer.
Adding a button or a link action to a PDF is considered making it interactive because if something is touched the form reacts in some manner.
Again without seeing your PDF with what ever things you have added, we are very limited on providing any detailed answer.
Links and buttons are not activated by clicking on a down arrow on any tool bar.
Placing the button over the text or area of the page to be displayed might not be the easiest approach. I would put a read only field with a white fill over the section to hide or display and have the button action to set the display property of the field to either "display.hidden" or "display.visible". This could even be done with a button by using the dropdown options for the mouse action and the on blur action for the button.
Thanks gkaiseril . Must be confusion on the down arrow on tool bar .. I meant the arrow that lets one exit the selected object
If it can't function with a lot script no problem .. they will the answer on a separate page.
Not sure how to post the file/page .. or send it to you without your permission .
Thanks for the effort.