For any grade level:[br][br]1. Always, sometimes, never?[br][br]2. Debate: what *are* these shapes if we are able to "change" them?

adapted from John Golden's [url=https://www.geogebra.org/m/FeX3dbky]https://www.geogebra.org/m/FeX3dbky[/url][br][br][url=https://twitter.com/farrarscott]https://twitter.com/farrarscott[/url]