A Web Whiteboard

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I have found this to be a very useful web tool which is not platform dependent.

This online whiteboard is another alternative to creating an "Explain Everything" experience on the laptop/desktops.

You are able to share a link from a whiteboard you are working on, to invite others to collaborate using their own devices simultaneously.

You can bring in JPEG files and annotate over the top of this to explain a concept such as part/whole addition.

You are then able to either download the finished image.

or 

Use Quicktime,  to make a screen recording of the explanation which will also record the oral explanation. Be sure, if you are using images to help with the explanation, to have all necessary images pre-downloaded before you start the screen recording. 

Select the work area of the Web Whiteboard and your screen recording will start.

When you have finished you press, ⌘,⌃, esc (command, control, escape) and this will stop the recording and bring up the finished recording ready to be given a file name and saved.

These explanations can be filed in the student's Google Drive. From there, the students can share these if the movie is needed to make a collaborative presentation.