CL to bring student sketch on graph to the next slide

[Jodi_Donald]

I ask students to draw two points onto a graph that already has three points showing.

I need the original graph with their sketched points to follow them to the next screen.

I tried graphLayer with .calculatorState, but the student marks did not follow.

Help please!

[pirsquared]

Have a look at this thread:

Copy previous sketch by student to next slide

Hi, I am trying to teach velocity vectors and acceleration vectors in calculus. I want to have a sketch with a path curve on the background. Students should draw the velocity vector on slide 1, then on slide 2 I want them to draw the acceleration vector on the same path at the same point. How can I get desmos to carry over the slide 1 drawing to slide 2? (I want them to see if the acceleration vector makes an obtuse or acute angle with the velocity vector) I understand that Copy Previous is …

[Jodi_Donald]

@Jodi_Donald

graphLayer

This did bring the sketch of the student, but I want to include the pre-made graph that they drew on as well.

So how do I combine the background: sketchLayer with a background:graphLayer?
Or do is it more complicated than that?

[pirsquared]

You can use layerStack to combine layers:
https://teacher.desmos.com/computation-layer/documentation#function:layerStack

However, if the pre-made graph isn’t being edited by the students - just sketched over - then the simplest solution is just to recreate the same graph again on the next slide, and then add the background layer in CL.

[Jodi_Donald]

Of course. That is exactly what I will do. Woo Hoo!!!