Good evening, @marilyn_lane ...
Sorry to see that your question hasn't been answered yet. Full discloser...I am not familiar with Chalk/Planboard, nor do I know what is really does or what the capabilities of it are. Doing a quick search of the Googles, I found this website: Chalk | Planning and Analytics Platform for K-12. As a general statement, if you are asking about other companies that have integrations with Canvas, you would normally want to reach out to the company (3rd party vendor) to see if they have anything available...in this case, the folks at Chalk/Planboard. The EduAppCenter website shows the vast majority of LTI (Learning Tools Interoperability) apps that can be integrated with Canvas. I do not see anything about Chalk/Planboard on the EduAppCenter.
I know this might not be the answer you were looking for, but I hope that it has helped to answer your question. Take care...be well.
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