3.NBT.A.1

Use place value understanding to round whole numbers to the nearest 10 or 100.

 
25 Lesson(s)
   

Colossal Fossils

3rd Grade Math » Unit: Rounding
3rd Grade Math » Unit: Rounding
Jennifer Valentine
Tucson, AZ
Environment: Urban
 
Big Idea:

Read about interesting fossils while practicing this important math skill!

 
Favorites (30)
 
Resources (19)
 
Reflections (1)
xiphactinusdb
   

Stories in Stone (Rounding to the Tens Place)

3rd Grade Math » Unit: Rounding
3rd Grade Math » Unit: Rounding
Jennifer Valentine
Tucson, AZ
Environment: Urban
 
Big Idea:

Place value is the bedrock that everything is built on!

 
Favorites (19)
 
Resources (22)
 
Reflections (1)
cap reef lesson image
   

Rounding - Unit Assessment

3rd Grade Math » Unit: Rounding
3rd Grade Math » Unit: Rounding
Jennifer Valentine
Tucson, AZ
Environment: Urban
 
Big Idea:

Careful monitoring of student progress helps refine instruction.

 
Favorites (13)
 
Resources (16)
 
Reflections (2)
i am round fuzzy guy on assessment doc lesson image temp
   
3rd Grade Math » Unit: Rounding
Jennifer Valentine
Tucson, AZ
Environment: Urban
 
Big Idea:

A high interest topic can help make large numbers seem less intimidating.

 
Favorites (14)
 
Resources (16)
 
Reflections (1)
lesson image a trip through time
   

Rounding to the Ten's Place

3rd Grade Math » Unit: Rounding
3rd Grade Math » Unit: Rounding
Jennifer Valentine
Tucson, AZ
Environment: Urban
 
Big Idea:

Once students master the concept behind rounding to the closest ten they can apply it to all other rounding!

 
Favorites (41)
 
Resources (23)
 
Reflections (3)
child with pencil writign
   

Rounding to the Hundred's Place

3rd Grade Math » Unit: Rounding
3rd Grade Math » Unit: Rounding
Jennifer Valentine
Tucson, AZ
Environment: Urban
 
Big Idea:

Students must have a well-developed understanding of place value in order to be able to round to the closest hundred.

 
Favorites (20)
 
Resources (20)
 
Reflections (1)
shutterstock 127559705
   

Rounding to the Closest Ten Above One Thousand

3rd Grade Math » Unit: Rounding
3rd Grade Math » Unit: Rounding
Jennifer Valentine
Tucson, AZ
Environment: Urban
 
Big Idea:

The principles behind rounding to the closest ten and hundred are EXACTLY the same whether the number is "small" (867) or "large" (123,867).

 
Favorites (12)
 
Resources (16)
 
Reflections (2)
shutterstock 105805922
   

Take Time for Tens: Act One

3rd Grade Math » Unit: Place Value Practice
3rd Grade Math » Unit: Place Value Practice
Jennifer Valentine
Tucson, AZ
Environment: Urban
 
Big Idea:

Students must have a solid understanding of 2 digit addition w/regrouping before moving on to 3 digit addition!

 
Favorites (11)
 
Resources (19)
 
Reflections (1)
jose lesson image taking time tens 6792
   

Place Value to Thousands

3rd Grade Math » Unit: Review for Testing
3rd Grade Math » Unit: Review for Testing
Diane Siekmann
Phoenix, AZ
Environment: Urban
 
Big Idea:

This lesson addresses the foundational skill of place value through modeling.

 
Favorites (21)
 
Resources (10)
 
Reflections (1)
100 dollar
   

Rounding to Check Accuracy

3rd Grade Math » Unit: Place Value
3rd Grade Math » Unit: Place Value
Michelle Marcus
Troy, MI
Environment: Suburban
 
Big Idea:

In order to approximate a total, or to help check the reasonableness of an answer, students need to be able to round to the nearest 10 or 100. Check out this lesson for a fun game that gives them practice rounding, adding, and subtracting.

 
Favorites (6)
 
Resources (9)
 
Reflections (1)
rounding to decide reasonableness
   

Math Scavenger Hunt (Days 1 - 5)

3rd Grade Math » Unit: Review for Testing
3rd Grade Math » Unit: Review for Testing
Diane Siekmann
Phoenix, AZ
Environment: Urban
 
Big Idea:

Students demonstrate mathematical thinking with real world examples.

 
Favorites (4)
 
Resources (11)
 
Reflections (1)
treasure map
   

Creating a Summer Review Packet (Day 1)

3rd Grade Math » Unit: Review Activities
3rd Grade Math » Unit: Review Activities
Michelle Marcus
Troy, MI
Environment: Suburban
 
Big Idea:

Students that can write their own story problems, and create math situations that require thought and perseverance to solve, are students that understand. This engaging activity reviews all of the third grade concepts and creates a review packet as well!

 
Favorites (4)
 
Resources (8)
 
Reflections (1)
summer
   

Jeopardy Review

3rd Grade Math » Unit: More Problem Solving Practice
3rd Grade Math » Unit: More Problem Solving Practice
Sarah Maffei
Environment: Urban
 
Big Idea:

Games make problem solving fun and exciting.

 
Favorites (5)
 
Resources (10)
 
Reflections (1)
single jeopardy game board 1
   

Happy Hundreds

3rd Grade Math » Unit: Place Value Practice
3rd Grade Math » Unit: Place Value Practice
Jennifer Valentine
Tucson, AZ
Environment: Urban
 
Big Idea:

Working with concrete representations (blocks) helps students understand the abstraction of regrouping.

 
Favorites (7)
 
Resources (15)
 
Reflections (1)
student regrouping 3 digit addition crop
   

The Next Decade

3rd Grade Math » Unit: Place Value
3rd Grade Math » Unit: Place Value
Michelle Marcus
Troy, MI
Environment: Suburban
 
Big Idea:

Students need to understand what a rounded number represents, and how that representation may be for several numbers. As the students solve various situations in this lesson, they come to know that a rounded number represents 9 different values.

 
Favorites (3)
 
Resources (9)
 
Reflections (1)
number line on floor
Common Core Math
 
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