## Common Core State Standards for Mathematics

Grade(s) 3 resources related to the following standard:
Operations and Algebraic Thinking
Solve problems involving the four operations, and identify and explain patterns in arithmetic.
8. Solve two-step word problems using the four operations. Represent these problems using equations with a letter standing for the unknown quantity. Assess the reasonableness of answers using mental computation and estimation strategies including rounding.

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In this online version of the popular card game, students combine five given number cards, using the four arithmetic operations (addition, subtraction, multiplication, division), to arrive at a target number. This version uses the numbers 1–10 only. Users may ask for a hint or view a possible solution, although there are often multiple solutions.
Activity, Game, Interactive Media
Grade Level: 3, 4, 5, 6+
In this series of videos (16 clips, 1-10 min each), math coach Becca Sherman works with a fourth grade class in developing concepts of equal groups, multiplication, division, and the relationships among them. She employs multiple models, including the "Singapore Bar Model," and facilitates student discussion, allowing her to assess students understanding of the language and the math involved. Included are teacher commentary, video transcripts, student work samples, and a video of debriefing among colleague observers.
Instructional Strategy, Video
Resource is part of a PD collection
This collection of multistep word problems provides problem solving practice for students in grades 3 to 6. Each of the 13 sets contains five problems with step-by-step Flash video solutions. The problems cover basic operations, algebraic reasoning, money, fractions, percent, perimeter, area, proportional reasoning, and measurement.
Demonstration, Problem Set, Video
Grade Level: 3, 4, 5, 6+
Thinking Blocks is an interactive Flash tool for modeling and solving math problems visually. Students represent quantities and relationships by placing blocks and braces on a work space and using the tools to resize and label them accordingly. Users can change the color of blocks, move them, copy them, divide them into equal parts, and separate them. A pencil tool and keyboard are also available. The site includes video tutorials demonstrating how to use the tool and how to model a wide variety of problem types. It also contains a bank of hundreds of word problems.
Activity, Interactive Media, Problem Set, Tools, Video
Grade Level: 1, 2, 3, 4, 5, 6+
In this 27-minute video third grade teacher Jen Saul demonstrates her use of daily routines and activities to maximize learning time, to create a positive, productive classroom culture, and to help students develop fluency with number skills. She discusses scheduling issues, the role of song and movement, development of math language, mental math strategies, and problem solving. Supporting documents include Choose Three Ways Worksheet (doc), Jen's class schedule, a sample of her planner, lyrics to the class song (pdfs), and a link to information on mental math strategies. Some excerpts from this comprehensive video are cataloged separately (see Related Resources).
Activity, Instructional Strategy, Video
Grade Level: 1, 2, 3, 4, 5