Common Core State Standards for Mathematics

Grade(s) 1 resources related to the following standard:
Geometry
Reason with shapes and their attributes.
3. Partition circles and rectangles into two and four equal shares, describe the shares using the words halves, fourths, and quarters, and use the phrases half of, fourth of, and quarter of. Describe the whole as two of, or four of the shares. Understand for these examples that decomposing into more equal shares creates smaller shares.

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This 46-page pdf document demonstrates the connections between the CCSS content standards and the mathematical practice standards. It is a compilation of research, standards from several states, instructional strategies, common misconceptions, and examples for each standard at the grade 1 level. It is intended to help teachers understand what each standard means in terms of what students must know and be able to do. Additional flip books are cataloged separately for grades K and 2-5.
Instructional Strategy, Reference Materials
This web page provides links to resources aligned to the CCSS that guide and support first grade mathematics teaching and learning. Tasks developed by the Mathematics Assessment Resource Service (MARS) and Problems of the Month, (POM home page is cataloged separately) developed by the Noyce Foundation are included. The activities were designed to measure students' ability to solve non-routine problems, explain and justify their solutions, and promote high level thinking skills. Resources are listed for specific grade 1 standards and are also organized by progression for an alternate search route.
Instructional Strategy, Problem Set, Reference Materials
This page hosts a collection of geometric tasks in pdf format that are aligned to the CCSS standards 1.G1 through 1.G3. It also has links to supplementary literature and learning materials.
Activity, Problem Set, Image Set
This 5-minute professional development video clip shows students engaged in the Common Core Practice Standard #6, as students explore fractions through fraction strips and a game. The learners attend to precision in terms of accurately adding fractions to one exact whole, communicating their ideas clearly, and recording results. Additional resources include a video transcript, teaching tips, and a link to a professional development reflection activity based upon the video.
Instructional Strategy, Video
Grade Level: 1, 2, 3, 4
This 22 slide interactive module provides details and examples to support the progression of the CCSS Fraction Standards for grades 1-8. Throughout the module are active links to the standards, a glossary, and examples and solutions.
Reference Materials, Voice Recording
Grade Level: 1, 2, 3, 4, 5, 6+
This narrative document describes the progression of Geometry across the K-6 grade band. It is informed both by research on children's cognitive development and by the logical structure of mathematics. The document discusses the most important goals for elementary geometry in three categories, namely, geometric shapes and their categories, composing and decomposing geometric shapes, and spatial relations and spatial structuring.
Reference Materials, Article
Grade Level: K, 1, 2, 3, 4, 5, 6+
Resource is part of a PD collection
In this interactive activity students practice with fraction halves and quarters while painting a flag. There are four different options for coloring the flag (using halves, using four one-quarters, using three-quarters and one-quarter, and using a half and two one-quarters). The goal is to paint a creative flag using the correct colors and fractions given.
Activity, Interactive Media
Grade Level: 1, 2, 3, 4, 5