Macbook Pro Zoom meeting Screenshare no side by side option

I am currently doing a sign language course over Zoom. The problem I am having is, when the Tutor shares their screen to type what they sign, their video screen goes very small (the same size as the rest of us in the class). It's very difficult to see their hands clearly and what they are signing. I believe on Zoom for windows you can simply just click the 3 dots on the top corner of their image and select it to be larger but there is no option to do that on Mac apparently. Hopefully someone can help me. I've gone through all the various view (Gallery, speaker, multi-view) but none of these work.