2.G.A.3

Partition circles and rectangles into two, three, or four equal shares, describe the shares using the words halves, thirds, half of, a third of, etc., and describe the whole as two halves, three thirds, four fourths. Recognize that equal shares of identical wholes need not have the same shape.

 
17 Lesson(s)
   

More Than One Name for a Fraction

2nd Grade Math » Unit: Fractions
2nd Grade Math » Unit: Fractions
Beth McKenna
York, ME
Environment: Suburban
 
Big Idea:

We are all called by more than one name. Lets find out if fractions can be too!

 
Favorites (2)
 
Resources (11)
 
Reflections (1)
screen shot 2014 04 06 at 8 41 49 pm
   

Fractions Can Be Fun

2nd Grade Math » Unit: Fractions
2nd Grade Math » Unit: Fractions
Beth McKenna
York, ME
Environment: Suburban
 
Big Idea:

Students recognize what it means to fold a paper in half, but do they recognize how to create fourths or thirds?

Standards:
 
Favorites (3)
 
Resources (16)
 
Reflections (1)
images
   

Partitioning Circles

2nd Grade Math » Unit: Partitioning Shapes
2nd Grade Math » Unit: Partitioning Shapes
Caitlin Vaughan
Environment: Urban
 
Big Idea:

Students learn the vocabulary halves, thirds, fourths, fifths, and sixths and then work to divide circles into equal pieces.

Standards:
 
Favorites (5)
 
Resources (15)
 
Reflections (1)
   

Equal Parts

2nd Grade Math » Unit: Partitioning Shapes
2nd Grade Math » Unit: Partitioning Shapes
Caitlin Vaughan
Environment: Urban
 
Big Idea:

Students explore how to break a square into equal parts. This is the first lesson in a series of lessons that preview fractions for 3rd grade.

Standards:
 
Favorites (7)
 
Resources (14)
 
Reflections (1)
img 0016
   

Partitioning Rectangles Review and Assessment

2nd Grade Math » Unit: Partitioning Shapes
2nd Grade Math » Unit: Partitioning Shapes
Caitlin Vaughan
Environment: Urban
 
Big Idea:

Students review the skills necessary to partition rectangles.

 
Resources (15)
 
Reflections (1)
rectangle in triangle
   

Partitioning squares to create triangles

2nd Grade Math » Unit: Partitioning Shapes
2nd Grade Math » Unit: Partitioning Shapes
Caitlin Vaughan
Environment: Urban
 
Big Idea:

Students learn about equal shapes and then explore dividing squares to make equal triangles.

Standards:
 
Favorites (1)
 
Resources (18)
 
Reflections (1)
img 0354
   

Eating Fractions

2nd Grade Math » Unit: Fractions
2nd Grade Math » Unit: Fractions
Beth McKenna
York, ME
Environment: Suburban
 
Big Idea:

What better way to see a practical use of fractions than by measuring, mixing and eating the results.

Standards:
 
Favorites (1)
 
Resources (11)
 
Reflections (2)
screen shot 2014 04 06 at 10 05 57 pm
   

Where Would It Be?

2nd Grade Math » Unit: Fractions
2nd Grade Math » Unit: Fractions
Beth McKenna
York, ME
Environment: Suburban
 
Big Idea:

Fractions are numbers and seeing them as a part of a whole and a length helps conceptual understanding of what a fraction is.

 
Favorites (1)
 
Resources (14)
 
Reflections (2)
100 1150
   

Introduction to Parts of a Whole

2nd Grade Math » Unit: Partitioning Shapes
2nd Grade Math » Unit: Partitioning Shapes
Caitlin Vaughan
Environment: Urban
 
Big Idea:

Students build upon their knowledge of partitioning circles and rectangles to discuss and explore what happens when one or more sections of the whole are taken away.

Standards:
 
Favorites (1)
 
Resources (14)
 
Reflections (1)
cake quarters
   

Equivalent Fractions

2nd Grade Math » Unit: Fractions
2nd Grade Math » Unit: Fractions
Beth McKenna
York, ME
Environment: Suburban
 
Big Idea:

A whole can be cut into a variety of different parts. Those parts may identify the same portion of the whole.

Standards:
 
Resources (10)
 
Reflections (1)
unknown
   

Fractions of Time and Money

2nd Grade Math » Unit: Fractions
2nd Grade Math » Unit: Fractions
Beth McKenna
York, ME
Environment: Suburban
 
Big Idea:

People talk about quarters of the hour, or quarters in a dollar. This lesson lets students in on what that means.

Standards:
 
Favorites (2)
 
Resources (9)
 
Reflections (1)
images
   

Doubles and Halves are Patterns Too

2nd Grade Math » Unit: Numbers Have Patterns
2nd Grade Math » Unit: Numbers Have Patterns
Beth McKenna
York, ME
Environment: Suburban
 
Big Idea:

Can you double an odd number? Can you cut it in half? Patterns in doubles and halves help to answer these questions.

 
Resources (13)
 
Reflections (1)
images
   

Numerators and Denominators

2nd Grade Math » Unit: Fractions
2nd Grade Math » Unit: Fractions
Beth McKenna
York, ME
Environment: Suburban
 
Big Idea:

Students always think of unit fractions (1/2, 1/3, 1/4), but the numerator can change. What happens when it changes? What does that mean for how much of the whole I have?

 
Favorites (2)
 
Resources (13)
 
Reflections (1)
images 1
   

North of the Dungeon

2nd Grade Math » Unit: Fractions
2nd Grade Math » Unit: Fractions
Beth McKenna
York, ME
Environment: Suburban
 
Big Idea:

Students need a hook to remember new terms. Castles and treasure maps can provide that hook

 
Favorites (2)
 
Resources (13)
 
Reflections (2)
100 1159
   

A Whole and Its Parts

2nd Grade Math » Unit: Fractions
2nd Grade Math » Unit: Fractions
Beth McKenna
York, ME
Environment: Suburban
 
Big Idea:

Students should be able to take fractions apart and put them back together to form a whole

Standards:
 
Resources (9)
 
Reflections (1)
images
Common Core Math
 
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