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- 2.G.A.1Recognize and draw shapes having specified attributes, such as a given number of angles or a given number of equal faces. Identify triangles, quadrilaterals, pentagons, hexagons, and cubes. (Sizes are compared directly or visually, not compared by measuring.)
- 2.G.A.2Partition a rectangle into rows and columns of same-size squares and count to find the total number of them.
- 2.G.A.3Partition 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.

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.

Partitioning Circles

2nd Grade Math

Â» Unit:

Partitioning Shapes

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

Fractions Can Be Fun

2nd Grade Math

Â» Unit:

Fractions

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

More Than One Name for a Fraction

2nd Grade Math

Â» Unit:

Fractions

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

Equal Parts

2nd Grade Math

Â» Unit:

Partitioning Shapes

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.

Partitioning Rectangles Review and Assessment

2nd Grade Math

Â» Unit:

Partitioning Shapes

Big Idea:Students review the skills necessary to partition rectangles.

Partitioning squares to create triangles

2nd Grade Math

Â» Unit:

Partitioning Shapes

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

Introduction to Parts of a Whole

2nd Grade Math

Â» Unit:

Partitioning Shapes

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.

Partitioning Squares to create rectangles

2nd Grade Math

Â» Unit:

Partitioning Shapes

Big Idea:Students take what they know about equal shapes and explore dividing squares into equal rectangles.

Eating Fractions

2nd Grade Math

Â» Unit:

Fractions

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

Equivalent Fractions

2nd Grade Math

Â» Unit:

Fractions

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

Where Would It Be?

2nd Grade Math

Â» Unit:

Fractions

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.

Numerators and Denominators

2nd Grade Math

Â» Unit:

Fractions

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?

Doubles and Halves are Patterns Too

2nd Grade Math

Â» Unit:

Numbers Have Patterns

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

Fractions of Time and Money

2nd Grade Math

Â» Unit:

Fractions

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

A Whole and Its Parts

2nd Grade Math

Â» Unit:

Fractions

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

2.G.A.1

Recognize and draw shapes having specified attributes, such as a given number of angles or a given number of equal faces. Identify triangles, quadrilaterals, pentagons, hexagons, and cubes. (Sizes are compared directly or visually, not compared by measuring.)

2.G.A.2

Partition a rectangle into rows and columns of same-size squares and count to find the total number of them.

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.