It is hard to write with this mouse.

I think your students would be more engaged if they were watching you write on the worksheet they are about to use with a document camera.  It might inform a number of things: how to use a pencil, what the worksheet looks like, what an assignment done correctly looks like. 

• You can record just as you did, but in the video you said “it is hard to write with this mouse”.  I want to help you with that.  In this video from my colleague.  She teaches High School, Sheltered ESOL Math: https://stlps-my.sharepoint.com/personal/amaher0052_slps_org/_layouts/15/stream.aspx?id=%2Fpersonal%2Famaher0052%5Fslps%5Forg%2FDocuments%2F150%20Algebra%20MC%2FUnit%207%20Quadratics%2FUnit%207%20Videos%2F7%2E7%20Quadratic%20Word%20Problems%2Emkv&ga=1&referrer=StreamWebApp%2EWeb&referrerScenario=AddressBarCopied%2Eview 

• In the video, she is using OBS (Open Broadcast Software) (free and open source) to record several inputs: her webcam, her document cam, and her computer screen.  I can teach you to do the same thing if you need to.  You should be able to use the premium software subscriptions provided by MCP.

• Actual Suggestion:  I think your students would be more engaged if they were watching you write on the worksheet they are about to use with a document camera.  It might inform a number of things: how to use a pencil, what the worksheet looks like, what an assignment done correctly looks like.

• So, the next question is, how do I get a document camera?  If you have a tech person at your school, I would ask them.  Second, I would consider this very cheap, DIY option:
  
  

• Above, you are looking at a small boom microphone stand with a cheap webcam mounted on it.  There are many places you could order something like this from.

• This was a kind of rambling response.  Please ask questions if you have them.