This is a bilingual Quadratic Function: Axis of Symmetry (and other key features) Introduction. The resource has students hole punch using a star, hole and heart hole puncher to locate key features of a quadratic function from a graph. This introduction utilizes students prior knowledge of a "line of symmetry" of a butterfly. For my ENL students, I found this to be a great visual resource that was used throughout the entire Quadratics unit in Algebra 1.