In second grade math, students have been building a strong foundation in geometry by exploring symmetry, polygons, and angles through hands-on, engaging activities. They’ve been identifying lines of symmetry and determining whether shapes are symmetrical or asymmetrical, as well as creating their own designs. In our work with polygons, students are classifying shapes based on attributes like the number of sides (edges) and vertices (corners), and naming shapes such as triangles, quadrilaterals, pentagons, and hexagons. As we’ve introduced angles, students are learning that angles are formed where two sides meet and can be compared by size, including identifying right angles. A highlight of this unit has been our Shape Quilt Project, where students designed quilt squares using polygons and at least one line of symmetry, then labeled and explained their work using precise math vocabulary.

Students have also been learning about different types of lines and how they form shapes. They explored lines, line segments, and rays, and practiced identifying and drawing each. We also focused on parallel lines and intersecting lines, helping students recognize these in both shapes and real-world examples.

In addition, students have been building and drawing arrays to show equal groups in rows and columns. They use math language like “rows,” “columns,” and “equal groups,” and connect their models to repeated addition (for example, 3 rows of 4 equals 12). As a fun application, students created an Array City, designing buildings and structures using arrays to represent windows and layouts, bringing math to life in a creative way.