1.G.A.3

Partition circles and rectangles into two and four equal shares, describe the shares using the words halves, fourths, and quarters, and use the phrases half of, fourth of, and quarter of. Describe the whole as two of, or four of the shares. Understand for these examples that decomposing into more equal shares creates smaller shares.

 
19 Lesson(s)
   

Halves of Cakes and Clocks

1st Grade Math » Unit: Fraction Action Lessons
1st Grade Math » Unit: Fraction Action Lessons
Thomas Young
Waitsfield, VT
Environment: Suburban
 
Big Idea:

Like Buddy from Cake Boss might say, This is FREEEKIN AWESOME, as kids learn to cut cakes in half and the true meaning of what 1/2 means.

 
Favorites (10)
 
Resources (23)
 
Reflections (1)
lesson image
   

Fair Share: Fraction Story Problems

1st Grade Math » Unit: Parts of a Whole
1st Grade Math » Unit: Parts of a Whole
Amanda Cole
New Orleans, LA
Environment: Urban
 
Big Idea:

Students apply their understandings of halves and fourths in story problems in this rigorous lesson!

 
Favorites (9)
 
Resources (13)
 
Reflections (1)
fraction
   

Picnic Basket Fractions

1st Grade Math » Unit: Parts of a Whole
1st Grade Math » Unit: Parts of a Whole
Amanda Cole
New Orleans, LA
Environment: Urban
 
Big Idea:

Take students to a pretend picnic and give them hands-on practice dividing shapes into halves!

 
Favorites (11)
 
Resources (14)
 
Reflections (1)
picnic
   

Equal Parts

1st Grade Math » Unit: Geometry
1st Grade Math » Unit: Geometry
Lisa Murdock
Lakeland, FL
Environment: Urban
 
Big Idea:

Equal Schmequal! In this lesson students will examine the parts of a shape and determine if they are equal or unequal.

Standards:
 
Favorites (6)
 
Resources (12)
 
Reflections (1)
equal parts
   

Assessment of Fractional Halves and Fourths

1st Grade Math » Unit: Fraction Action Lessons
1st Grade Math » Unit: Fraction Action Lessons
Thomas Young
Waitsfield, VT
Environment: Suburban
 
Big Idea:

Students will work with the idea of 1/2 and 1/4 fractions through an assessment task and an activity that has them breaking squares, rectangles and circles into 1/2 and 1/4 pieces.

 
Favorites (5)
 
Resources (25)
 
Reflections (1)
lesson image
   

Pizza Party Invasion

1st Grade Math » Unit: Parts of a Whole
1st Grade Math » Unit: Parts of a Whole
Amanda Cole
New Orleans, LA
Environment: Urban
 
Big Idea:

Invasion! Aliens have invaded Earth for our pizza. The trouble is they only want pizzas that are divided into halves.

 
Favorites (2)
 
Resources (17)
 
Reflections (1)
pizza
   

It's Not Fair if She Gets More Cookie Than Me

1st Grade Math » Unit: Fractions
1st Grade Math » Unit: Fractions
Jennifer Moon
Oklahoma City, OK
Environment: Urban
 
Big Idea:

First Graders know when something is not fair and unequal parts are NOT FAIR! This is an introductory lesson to fractions and opens up a discussion to how wholes can be divided.

Standards:
 
Favorites (10)
 
Resources (15)
mouse
   

Ways to Make: Posters

1st Grade Math » Unit: Parts of a Whole
1st Grade Math » Unit: Parts of a Whole
Amanda Cole
New Orleans, LA
Environment: Urban
 
Big Idea:

In this summative lesson, students create posters of different ways to divide shapes into halves and fourths! This pushes students to think about how different ways of dividing shapes can yield equivalent parts. The activity is followed by the unit quiz!

Standards:
 
Favorites (4)
 
Resources (21)
 
Reflections (1)
student
   

Fraction Art

1st Grade Math » Unit: Fraction Action Lessons
1st Grade Math » Unit: Fraction Action Lessons
Thomas Young
Waitsfield, VT
Environment: Suburban
 
Big Idea:

Today your students will use their knowledge of fractions and their artistic ability to create fractional art.

 
Favorites (3)
 
Resources (16)
 
Reflections (1)
lesson image
   

Fractions: Halves and Fourths & Quarters

1st Grade Math » Unit: Fractions
1st Grade Math » Unit: Fractions
Jennifer Moon
Oklahoma City, OK
Environment: Urban
 
Big Idea:

My class has been studying halves, fourths/quarters. This lesson allows them to review these topics in a creative way.

Standards:
 
Favorites (3)
 
Resources (14)
 
Reflections (1)
fractions
   

Teddy Bear Picnic

1st Grade Math » Unit: Parts of a Whole
1st Grade Math » Unit: Parts of a Whole
Amanda Cole
New Orleans, LA
Environment: Urban
 
Big Idea:

Go back to the picnic and have students show how to divide a shape into fourths!

 
Favorites (5)
 
Resources (15)
 
Reflections (1)
teddy bear
   

Halves

1st Grade Math » Unit: Geometry
1st Grade Math » Unit: Geometry
Lisa Murdock
Lakeland, FL
Environment: Urban
 
Big Idea:

Let’s Share! In this lesson students will learn to divide circles and rectangles into halves.

Standards:
 
Favorites (4)
 
Resources (13)
 
Reflections (1)
halves 2
   

Geometry Assessment

1st Grade Math » Unit: Geometry
1st Grade Math » Unit: Geometry
Lisa Murdock
Lakeland, FL
Environment: Urban
 
Big Idea:

Let’s put this all together! In this culminating assessment, students will be able to demonstrate their understanding of defining the attributes of 2D shapes, and halves and fourths.

 
Favorites (5)
 
Resources (9)
 
Reflections (1)
pattern blocks
   

Fourths

1st Grade Math » Unit: Geometry
1st Grade Math » Unit: Geometry
Lisa Murdock
Lakeland, FL
Environment: Urban
 
Big Idea:

Let’s Share! In this lesson students will learn to divide circles and rectangles into four equal shares and describe the shares using the vocabulary fourths and quarters.

Standards:
 
Favorites (2)
 
Resources (13)
 
Reflections (1)
fourths
   

Fractions; Fourths

1st Grade Math » Unit: Fractions
1st Grade Math » Unit: Fractions
Jennifer Moon
Oklahoma City, OK
Environment: Urban
 
Big Idea:

I want my students to develop a strong foundation in fractions. Today we will work on dividing items into regional parts of fourths. Also, I will discuss a fourths synonym (quarter) and engage my students in using this new terminology.

Standards:
 
Favorites (2)
 
Resources (16)
 
Reflections (1)
lesson
Common Core Math
 
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