You can use browser-based Presemo tool to activate participants in both class and online teaching.

Make your first Presemo activity or think up new pedagogical approaches.

You can get started with these instructions::

4 min quick start (in Finnish): https://oulu.yuja.com/V/Video?v=414847&a=446441818

Text info also in English: Presemo, online collaboration tool (oulu.fi)