Visualiser during teams meeting with multiple attendees

I'm trying to use a visualiser in a teams  meeting recorded session with children and have found that the only way for them to see the visualiser main screen is for me to come out of screen share, they then need to pin me to see me and I have switched my camera to visualiser. Some children however due to not having teams downloaded on their laptop are having to leave the meeting and rejoin to be able to see the visualiser full screen. There has to be a better way to facilitate the whole meeting viewing a visualiser full screen surely.