I have been working on an activity where I’d like to prevent students from advancing until they have completed a task. The approach I’ve taken is to send them back to an earlier screen if there is a problem but it would be easier if the ‘next’ button could be disabled until a condition is met. So far, however, I’ve not found anything that suggests this is possible?
You’re right, that’s not possible. Even some Desmos created activities use your strategy of sending students back to the previous screen.
Pity, but thanks for the reply. Hopefully someone from Desmos will add this a change request list as it would be VERY useful.
I’ve just returned to Desmos after a year’s absence and found this facility has now been implemented! Thanks!!
Solution: In the screen script use “hideNextButton: condition”
(Don’t see anything in the CL documentation?)
Sadly this does not do what you’d like it to do. It literally just hides the next button, but does not prevent navigation to the next screen. Kids can - and will as I’ve tried this - use the keyboard to navigate to the next screen anyway.
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Oh no! That’s so disappointing…and perhaps explains why it is not documented!
The Next button sinks already exist for an internal feature. Most of the sinks are not active without that internal access. There is obviously desire to have CL related to the Done button feature, and hopefully will be on its way.