Unit: Place Value and Operations of Addition & Subtraction Grade: 3

Monday / Tuesday / Wednesday / Thursday / Friday
Daily Routines: fact families, minute math, name that number, word problem of the day, Pico Fermi Bagel, base ten game / Daily Routines: fact families, minute math, name that number, word problem of the day, Pico Fermi Bagel, base ten game / Introduce Math Workshop / Place Value to 1000 / Place Value to 1000
Rounding to the
Nearest Ten / Rounding to the
Nearest Ten / Rounding to the
Nearest Hundred / Rounding to the
Nearest Hundred / Rounding to the
Nearest Hundred
Day 3
Application of the Concept of Rounding: Estimation / Application of the Concept of Rounding: Estimation / Application of the Concept of Rounding: Estimation / The Meaning of Addition / Addition within 100
Addition within 1000
Strategy: Partial Sums / Addition within 1000
Strategy: Partial Sums / Addition within 1000
Strategy: Partial Sums / Addition within 1000
Strategy: Traditional Algorithm / Addition within 1000
Strategy: Traditional Algorithm
Addition within 1000
Strategy: Traditional Algorithm / Addition within 1000
Strategy: Other Strategies & Algorithms / Application of Addition: Word Problems / Application of Addition: Word Problems / The Meanings of Subtraction
The Meanings of Subtraction (cont.) and Subtraction within 100 / Relationship Between Addition and Subtraction / Subtraction within 1000
Strategy: Traditional Trade First Algorithm / Subtraction within 1000
Strategy: Traditional Trade First Algorithm / Subtraction within 1000
Strategy: Traditional Trade First Algorithm
Subtraction within 1000
Strategy: Counting On / Subtraction within 1000
Strategy: Counting On / Subtraction within 1000
Strategy: Counting On / Subtraction within 1000
Strategy: Other Strategies & Algorithms / Application of subtraction:
Word Problems
Application of subtraction:
Word Problems / Application of Addition and Subtraction:
Two-Step Word Problems / Application of Addition and Subtraction:
Two-Step Word Problems / Application of Addition and Subtraction:
Two-Step Word Problems / Unit Assessment
Unit Resources
End of Unit Outcomes:
(Based on Massachusetts Curriculum Frameworks for Mathematics/Common Core State Standards) / At end of unit students will be able to:
·  3.NBT.1 Use place value understanding to round whole numbers to the nearest 10 or 100.
·  3.NBT.2 Fluently add and subtract, within 1000, using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.
·  3.OA.8 Solve two-step word problems using addition and subtraction. 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.
Everyday Math (2004/2007) lessons with components connected to concepts and skills addressed in this unit: / ·  1.6 Equivalent Names
·  1.8 Calculator Routines
·  1.11 Patterns
·  2.1 Fact Families
·  2.2 Extensions of Addition and Subtraction Facts
·  2.3 “What’s My Rule?”
·  2.4 Parts-and-Total Number Stories
·  2.5 Change Number Stories
·  2.6 Comparison Number Stories
·  2.7 The Partial-Sums Algorithm
·  2.8 The Trade-First Subtraction Algorithm
·  2.9 Addition with Three or More Addends
Everyday Math games connected to concepts and skills addressed in this unit: / ·  Number Top It (modified – introduced in 5.2)
Everyday Math Routines connected to concepts and skills addressed in this unit: / ·  Math Message (introduced in 1.2)
·  Mental Math & Reflexes (introduced in 1.1)
·  Games (introduced in 1.3),
·  Name-Collection Boxes (introduced in 1.6)
·  Fact Triangles for Addition & Subtraction (introduced in 2.1)
·  “What’s My Rule?” (introduced in 2.3)
Resources available on K-5 Math Teaching Resources found at http://www.k-5mathteachingresources.com/3rd-grade-number-activities.html / ·  Two-Step Word Problems (Set 1) http://www.k-5mathteachingresources.com/support-files/3rdgrademultistepproblems.pdf
·  3 Digit Addition Split http://www.k-5mathteachingresources.com/support-files/3-digit-addition-split.pdf
·  Difference Add http://www.k-5mathteachingresources.com/support-files/differenceadd.pdf
·  Round Up Or Down? http://www.k-5mathteachingresources.com/support-files/round-up-or-down.pdf
·  Round to the Nearest Ten http://www.k-5mathteachingresources.com/support-files/roundtothenearest10game.pdf
·  Round to the Nearest Hundred http://www.k-5mathteachingresources.com/support-files/roundtothenearest100game.pdf
Resources available on Thinkfinity/Illuminations found at http://www.thinkfinity.org/state-standards-search / ·  Electronic Abacus http://illuminations.nctm.org/ActivityDetail.aspx?id=8
Resources available on the Library of Virtual Manipulatives found at http://nlvm.usu.edu/ / ·  Base Blocks Addition http://nlvm.usu.edu/en/nav/frames_asid_154_g_2_t_1.html?from=category_g_2_t_1.html
·  Base Block Subtraction http://nlvm.usu.edu/en/nav/frames_asid_155_g_2_t_1.html?from=category_g_2_t_1.html
·  Base Blocks http://nlvm.usu.edu/en/nav/frames_asid_152_g_2_t_1.html?from=category_g_2_t_1.html
·  Chip Abacus http://nlvm.usu.edu/en/nav/frames_asid_209_g_2_t_1.html?open=activities&from=category_g_2_t_1.html
Additional games and activities: / ·  Base Ten Game – with addition and subtraction
·  Pico Fermi Bagel
Possible literature connections: / ·  The Grapes of Math by Greg Tang
·  Math-terpieces by Greg Tang

DRAFT July 2012