# Marbleslides correctness **URL:** \ **Category:** Questions\ **Created:** [January 8, 2019, 6:11pm UTC](https://cl.desmos.com/t/marbleslides-correctness/343 "2019-01-08T18:11:33Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![TeacherLearner](https://yyz1.discourse-cdn.com/flex031/user_avatar/cl.desmos.com/teacherlearner/32/245_2.png) [@TeacherLearner](https://cl.desmos.com/u/TeacherLearner)\ **Post date:** [January 8, 2019, 6:11pm UTC](https://cl.desmos.com/t/marbleslides-correctness/343/1 "2019-01-08T18:11:33Z")
Is there a way to create conditional content in Slide 2 that depends on whether a student got the Marbleslide question correct in Slide 1? Marbleslides have no sources or sinks. ---
**Author:** ![JayChow](https://yyz1.discourse-cdn.com/flex031/user_avatar/cl.desmos.com/jaychow/32/1674_2.png) [@JayChow](https://cl.desmos.com/u/JayChow)\ **Post date:** [January 8, 2019, 7:14pm UTC](https://cl.desmos.com/t/marbleslides-correctness/343/2 "2019-01-08T19:14:48Z")
Yeah, sorry. No CL for marbleslides. ---
**Author:** ![TeacherLearner](https://yyz1.discourse-cdn.com/flex031/user_avatar/cl.desmos.com/teacherlearner/32/245_2.png) [@TeacherLearner](https://cl.desmos.com/u/TeacherLearner)\ **Post date:** [January 8, 2019, 8:09pm UTC](https://cl.desmos.com/t/marbleslides-correctness/343/3 "2019-01-08T20:09:43Z")
Okay. It would be great to have just this one CL, because I’m noticing kids doing the work correctly but forgetting to click “launch”. Maybe they got it wrong one time, then fixed the answer, but never clicked “launch” a second time. So they show up on my dashboard with an X for that screen, but they actually did the work right. I want to prompt them on the next screen that they’re work on the marbleslide is still marked wrong, and they should go back and click “launch” . ---
**Author:** ![OwenJ](https://yyz1.discourse-cdn.com/flex031/user_avatar/cl.desmos.com/owenj/32/175_2.png) [@OwenJ](https://cl.desmos.com/u/OwenJ)\ **Post date:** [January 24, 2019, 3:16pm UTC](https://cl.desmos.com/t/marbleslides-correctness/343/4 "2019-01-24T15:16:36Z")
you could put a note in the marbleslide reminding then to click launch, but other than that there is not much you can do. try this marbleslide activity with your students and tell me what you think > **[Marbleslides: Expert • Activity Builder by Desmos](https://teacher.desmos.com/activitybuilder/custom/59e90aba4587725dde8229d7)** > > Over 65 marbleslide challenges that are fun and challenging. ---
**Author:** ![Jeff\_Holcomb](https://yyz1.discourse-cdn.com/flex031/user_avatar/cl.desmos.com/jeff_holcomb/32/433_2.png) [@Jeff\_Holcomb](https://cl.desmos.com/u/Jeff_Holcomb)\ **Post date:** [October 24, 2021, 11:54pm UTC](https://cl.desmos.com/t/marbleslides-correctness/343/5 "2021-10-24T23:54:48Z")
Any thoughts of putting in a correct source for marble slides? Would help me! ---
**Author:** ![Rob\_Last](https://yyz1.discourse-cdn.com/flex031/user_avatar/cl.desmos.com/rob_last/32/3393_2.png) [@Rob\_Last](https://cl.desmos.com/u/Rob_Last)\ **Post date:** [February 21, 2022, 3:51am UTC](https://cl.desmos.com/t/marbleslides-correctness/343/6 "2022-02-21T03:51:45Z")
I’d love to just be able to get a press count for the launch. ---
**Author:** ![Josiah\_Windle](https://yyz1.discourse-cdn.com/flex031/user_avatar/cl.desmos.com/josiah_windle/32/6809_2.png) [@Josiah\_Windle](https://cl.desmos.com/u/Josiah_Windle)\ **Post date:** [March 18, 2025, 10:02pm UTC](https://cl.desmos.com/t/marbleslides-correctness/343/7 "2025-03-18T22:02:07Z")
for some reason i can change a variable of the level in the preveiw ---
**Author:** ![bhssingul](https://yyz1.discourse-cdn.com/flex031/user_avatar/cl.desmos.com/bhssingul/32/6761_2.png) [@bhssingul](https://cl.desmos.com/u/bhssingul)\ **Post date:** [September 8, 2025, 6:08pm UTC](https://cl.desmos.com/t/marbleslides-correctness/343/8 "2025-09-08T18:08:14Z")
anybody else wondering how the black hole thing is done ---
**Author:** ![bhssingul](https://yyz1.discourse-cdn.com/flex031/user_avatar/cl.desmos.com/bhssingul/32/6761_2.png) [@bhssingul](https://cl.desmos.com/u/bhssingul)\ **Post date:** [September 8, 2025, 6:08pm UTC](https://cl.desmos.com/t/marbleslides-correctness/343/9 "2025-09-08T18:08:30Z")
not the level but the animation