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Mathematics Grade 3
Educational Links

Strand: NUMBER AND OPERATIONS IN BASE TEN (3.NBT)

Use place value understanding and properties of operations to perform multi-digit arithmetic. A range of algorithms may be used (Standards 3.NBT.1–3).
• Carlos and Sara Present Their Solutions
This Teaching Channel video shows two students' responses to mental math and student-led solution. (5 minutes)
• Classroom Supplies
In this task students are asked to decide how to spend \$1,000 on supplies and materials for their classroom; students will have to make choices and be careful not to exceed the budget. Students are asked to decide which supplies will benefit the class the most and will compare their choices with other students' choices.
• Grade 3 Mathematics Module 2: Place Value and Problem Solving with Units of Measure (EngageNY)
Module 2 uses place value to unify measurement, rounding skills, and the standard algorithms for addition and subtraction. The module begins with plenty of hands-on experience using a variety of tools to build practical measurement skills and conceptual understanding of metric and time units. Estimation naturally surfaces through application; this transitions students into rounding. In the modules final topics students round to assess whether or not their solutions to problems solved using the standard algorithms are reasonable.
• How Many Colored Pencils?
The purpose of this task is to support students' reasoning based on place value to multiply a single digit number by a multiple of 10.
• IXL Game: Identify the digit with a particular place value
This game helps third graders understand place values by identifying the digit with a particular place value. This is just one of many online games that supports the Utah Math core. Note: The IXL site requires subscription for unlimited use.
• Mental Math
This video and lesson plan will help students use the strategies of decomposing, jumps of ten, and splitting. (6 minutes)
• Rounding to 50 or 500
In this task students are asked questions about rounding to the nearest ten and the nearest hundred.
• Rounding to the Nearest 100 and 1000
Part (a) of this task fits squarely within third grade when students "use place value understanding to round whole numbers to the nearest 10 or 100". Part (b) is a first step in rounding beyond tens and hundreds.
• Rounding to the Nearest Ten and Hundred
The purpose of this task is for students to practice rounding numbers to the nearest ten, connect the rules for rounding with location on the number line, and to introduce the idea of rounding to the nearest 100.
• Teaching Different Methods To Count Collections
This Teaching Channel video shows students recording and sharing strategies when skip counting. (8 minutes)
• USBE Core Guide for Domain: Number and Operations in Base Ten (3NBT1)
This math guide provides academic vocabulary, instructional strategies, teacher resources, and assessment tasks for the Number and Operations in Base Ten domain.
• USBE Core Guide for Domain: Number and Operations in Base Ten (3NBT2)
This math guide provides academic vocabulary, instructional strategies, teacher resources, and assessment tasks for the Number and Operations in Base Ten domain.
• USBE Core Guide for Domain: Number and Operations in Base Ten (3NBT3)
This math guide provides academic vocabulary, instructional strategies, teacher resources, and assessment tasks for the Number and Operations in Base Ten domain.

http://www.uen.org - in partnership with Utah State Board of Education (USBE) and Utah System of Higher Education (USHE).  Send questions or comments to USBE Specialist - Shannon Ference and see the Mathematics - Elementary website. For general questions about Utah's Core Standards contact the Director - DIANA SUDDRETH .
Email:  diana.suddreth@schools.utah.gov

These materials have been produced by and for the teachers of the State of Utah. Copies of these materials may be freely reproduced for teacher and classroom use. When distributing these materials, credit should be given to Utah State Board of Education. These materials may not be published, in whole or part, or in any other format, without the written permission of the Utah State Board of Education, 250 East 500 South, PO Box 144200, Salt Lake City, Utah 84114-4200.