Resources and Tools for Elementary Math Specialists and Teachers

Common Core State Standards for Mathematics

Grade(s) 5 resources related to the following standard:
Classify two-dimensional figures into categories based on their properties.
4. Classify two-dimensional figures in a hierarchy based on properties.

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This document provides descriptions and examples of what each Mathematics Common Core standard means a Grade Five student will know, understand and be able to do. This "unpacking" of the standards provides instructional guidelines and was developed to assist North Carolina educators teach the Mathematics Common Core (Standard Course of Study).
Reference Materials
Grade Level: 5
These five activities give students practice in interpreting and creating network representations that organize information and relate connectedness and other metrics such as time and distance. Among the types of networks studied are transport distances, family trees, events tree diagrams, and factor networks. Teaching suggestions, links to materials, and progress indicators are included.
Activity, Instructor Guide/Manual, Illustration
Grade Level: 3, 4, 5, 6+
This interactive Flash activity asks the user to sort shapes into a 2 by 2 chart, known as a Carroll Diagram, based on their properties. Properties used to sort include "quadrilateral" or "not quadrilateral" and "regular polygon" or "not regular polygon."
Activity, Interactive Media
Grade Level: 2, 3
This library from the classic Annenberg Learner series contains 6 videos (15-20 minutes each) demonstrating how to incorporate the National Council of Teachers of Mathematics (NCTM) standards in grade 5-8 math classrooms. Using minimal technology resources, middle school teachers model effective techniques for guiding and assessing student understanding and offer strategies for keeping students motivated and engaged. Grade 5 videos feature work with equivalent fractions and geometry. The featured techniques also support integration of the CCSS Mathematical Practices. Support pages provide further elaboration and questions to focus viewer reflection and discussion.
Demonstration, Instructional Strategy, Video
Grade Level: 5, 6+
This interactive Java applet allows users to explore tessellations made from a triangle, rectangle, or hexagon. The user deforms one of these base shapes into another shape by pulling at its sides and corners and then clicks a button to have the applet tile the plane with that shape. The user can choose two or three colors for the tessellation, depending on the base shape. An information window provides data about the shape to be tiled, including: area, perimeter, coordinates for vertices, and side lengths.
Interactive Media
Grade Level: 2, 3, 4, 5
This 7-page article (PDF) describes a professional development activity utilizing a painting by Wassily Kandinsky to launch an investigation into the conceptual understanding of polygon classification and the area and perimeter of rectangles and triangles. The resource includes a five page activity sheet (PDF) linked on the main page.
Activity, Lesson Plans, Reference Materials, Article
Grade Level: 3, 4, 5
In this geometry lesson students classify triangles and explore side lengths of triangles to discover the Triangle Inequality Theorem. The resource includes an exploratory activity and student sheet (pdf), class discussion prompts, a small group spinner activity, extension suggestions, and links to two related resources (cataloged separately).
Activity, Lesson Plans
Grade Level: 3, 4, 5