Grade 2MathTEKS 2.8C

Grade 2 Math TEKS 2.8C:Classify and Sort Polygons

Free, teacher-ready lessons and worksheets for Classify and Sort Polygons in Grade 2 Math, fully aligned to Texas TEKS 2.8C.

Classify and sort polygons with 12 or fewer sides according to attributes, including identifying the number of sides and number of vertices

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      Grade 2 Math TEKS Lessons

      TEKS 2.8C: Classify and Sort Polygons

      • Classify and Sort Two-Dimensional Shapes

        About this lesson

        Learning Target: I can identify parts of 2D shapes and use them to name shapes.

        Focuses On:

        • Identifying parts of a 2D shape
        • Identifying 2D shapes based on their parts

        Builds On:

        1.6A

        Classify and sort regular and irregular two-dimensional shapes based on attributes using informal geometric language

        K.6E

        Classify and sort a variety of regular and irregular two-and three-dimensional figures regardless of orientation or size

        Next Level:

        3.6A

        Classify and sort two-and three-dimensional figures, including, cones, cylinders, spheres, triangular and rectangular prisms, and cubes, based on attributes using formal geometric language

        Read More:

        This lesson is designed to support student understanding of classifying and sorting 2D shapes.


        The two instructional blocks in this lesson focus on identifying parts of 2D shapes and identifying 2D shapes based on their parts.


        In the first instructional block, students learn to identify the attributes of 2D shapes such as vertices and sides. 


        The second instructional block focuses on naming 2D shapes based on the number of sides and vertices.


        Scaffolds and supports such as pictorial representations are intentionally built throughout the lesson to support conceptual learning.  

        Grade 2MathTEKS 2.8C

      Grade 2 Math TEKS Worksheets

      TEKS 2.8C: Classify and Sort Polygons

      See all 6 worksheets

      • Skill Builder: Classify and Sort Two-Dimensional Shapes

        Grade 2MathTEKS 2.8C

      • Skill Builder: Compose Two-Dimensional Shapes

        Grade 2MathTEKS 2.8C

      • Skill Builder: Decompose Two-Dimensional Shapes

        Grade 2MathTEKS 2.8C

      • Full Topic: Two-Dimensional Shapes

        Grade 2MathTEKS 2.8C

      • Decompose Two-Dimensional Shapes

        Grade 2MathTEKS 2.8C

      • Compose Two-Dimensional Shapes

        Grade 2MathTEKS 2.8C

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      Frequently Asked Questions

      How do you teach Classify and Sort Polygons to 2nd graders?

      To teach Classify and Sort Polygons to 2nd grade Math students, start with concrete, hands-on models, then move to pictorial representations before abstract notation. TEKS 2.8C asks students to classify and sort polygons with 12 or fewer sides according to attributes, including identifying the number of sides and number of vertices. Crystal Instruction's free ClearLessons for 2.8C walk through this progression with modeling, guided practice, and built-in checks for understanding, while the ClearSheets provide scaffolded practice. You can download both free on this page.

      What is 2.8C in 2nd grade Math?

      TEKS 2.8C is a 2nd grade Math standard for Classify and Sort Polygons. It requires students to classify and sort polygons with 12 or fewer sides according to attributes, including identifying the number of sides and number of vertices. It is part of the Texas Essential Knowledge and Skills (TEKS) for Grade 2 Math.

      Where can I find free TEKS 2.8C lessons and worksheets?

      You can download free TEKS 2.8C lessons and worksheets directly on this page — no login or account required. Crystal Instruction provides free PDF versions of our Classify and Sort Polygons ClearLessons and ClearSheets for Grade 2 Math, and each one is also available as an interactive lesson inside the full Crystal Instruction platform.

      What skills are included in 2nd grade Classify and Sort Polygons?

      TEKS 2.8C (Classify and Sort Polygons) covers the following 2nd grade Math skills: students learn to classify and sort polygons with 12 or fewer sides according to attributes, including identifying the number of sides and number of vertices. Free resources for this standard include Classify and Sort Two-Dimensional Shapes.

      Are TEKS 2.8C resources aligned to STAAR?

      Although Grade 2 Math is not directly tested on the Texas STAAR test, TEKS 2.8C builds the foundational skills students need for later STAAR assessments. Every Crystal Instruction ClearSheet for 2.8C is STAAR-aligned, and our ClearLessons are built to STAAR rigor using released STAAR test items, so students practice Classify and Sort Polygons at the depth STAAR expects.