## Common Core State Standards for Mathematics

Grade(s) 5 resources related to the following standard:
Number and Operations in Base Ten
Understand the place value system.
3. Read, write, and compare decimals to thousandths.
b. Compare two decimals to thousandths based on meanings of the digits in each place, using >, =, and < symbols to record the results of comparisons.

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This 68-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 5 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-4.
Instructional Strategy, Reference Materials
This web page provides links to resources aligned to the CCSS that guide and support fifth grade mathematics teaching and learning. Tasks developed by the Mathematics Assessment Resource Service (MARS), Problems of the Month, (POM home page is cataloged separately) and videos of public lessons and number talks developed by the Noyce Foundation are included. The tasks were designed to measure students' ability to solve non-routine problems, explain and justify their solutions, and promote high level thinking skills. They include the scoring rubric, student responses, and discussion of student understanding and misconceptions. Resources are listed for specific grade 5 standards and are also organized by progression for an alternate search route.
Instructional Strategy, Problem Set, Reference Materials, Video
This question and answer service for math students and their teachers offers a searchable archive all about numbers and number sense at the elementary level.
Reference Materials, Community
Grade Level: 3, 4, 5, 6+
This question and answer service for math students and their teachers offers a searchable archive all about place value at the elementary level. Topics addressed include rounding, estimating, significant digits, and scientific notation.
Community
Grade Level: 3, 4, 5, 6+
This interactive Java puzzle helps students develop decimal number sense and systematic analysis skills. The applet displays 7 interlocking circles and a set of 14 numbers (in tenths), 5 of them already placed in the circles. Solvers arrange the remaining numbers in the empty sections of the circles so that the three sections of each circle sum to 3. Parent/Teacher information offers instructions and implementation suggestions.
Activity, Interactive Media
This collection of 6 games develops place value, operation sense and fluency, estimation, and strategic thinking. It is played on paper with a 6- or 9-sided die (printable pdf game sheets included). Players choose a game grid with empty cells representing the digits of a computation (addition, subtraction, multiplication, or division). They take turns rolling a die and placing the resulting number in a cell on their own grids. The goal is to create a sum/difference/product/quotient that is closest to a target number. Variations include using a decimal point and scoring options. Teachers' Notes include suggestions for introducing the game, discussion questions, support suggestions, and a link to a more challenging extension (Countdown, cataloged separately).
Activity, Game
Grade Level: 2, 3, 4, 5, 6+
This interactive applet helps develop number sense. The user mentally estimates a number that is represented by an arrow on a number line and then checks the estimate by clicking to have the exact number revealed. Users can choose a number range for whole numbers (between 0 and 10, 100, 1000 or 10,000) or decimals (tenths or hundredths between 0 and 1). An optional scale of tick marks provides guidance. The activity does not provide a scoring component.
Interactive Media
Grade Level: K, 1, 2, 3, 4, 5