Clip 21/21: Standard 7: Look for & Make Use of Structure Graphing Quadratics Part 3

Mathematically proficient students look closely to discern a pattern or structure...They recognize the significance of an existing line in a geometric figure and can use the strategy of drawing an auxiliary line for solving problems. They also can step back for an overview and shift perspective.

Carlos Cabana works with his high school English language learning students on algebraic reasoning and multiple representations around parabolas. In this clip, his students work together in a group, clarifying each other's process and thinking. The female students clarify accurate steps for the male student. They discuss how to use the x- and y-intercepts to support their process. They step back and ask themselves what they are seeking in their work.

See this video in the context of an entire lesson.