These are broken down into the following skills: • Video 1: Recognize a line of symmetry by folding a two - dimensional figure • Video 2: Identify line symmetry in irregular polygons • Video 3: Identify line symmetry in regular polygons • Video 4: Identify line symmetry in a geometric figure Typically, Learn Zillion videos will have a Guided Practice video that will allow students to practice and check the skill demonstrated in the «Core Lesson» video. (tes.com)
Stella's Irregular Polygon canvases (1965 — 67) and Protractor series (1967 — 71) further extended the concept of the shaped canvas. (findlaygalleries.com)
What's perhaps even more startling is that Frank Stella's series was the first to be planned by an artist as a deliberate set of paintings shaped as irregular polygons. (museumpublicity.com)