## 3.NF.A.3

## Explain equivalence of fractions in special cases, and compare fractions by reasoning about their size.

28 Lesson(s)

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#### The Common Core defines understanding of fractions as a 3rd grade Critical Area, beginning with unit fractions. It's time to grow our understanding.

#### Students need to connect fractions to their world, and use them to help be more accurate in measurements. This lesson begins to make that connection.

#### Students need to be able to create their own models of fractions to support their reasoning as they compare fractions.

#### Comparing and contrasting examples and non-examples of unit fractions allows students to develop a conceptual understanding of fractions.

#### Children need to "see" math in order to begin explaining their knowledge. This lesson pairs fraction comparisons with modeling math.

#### Children need to make meaning of tools before we ask them to use them for modeling their thinking. Fraction rods are a perfect example in this lesson.

#### This is a summative assessment based on my fraction unit. This assessment will determine if I need to reteach any concepts, and guide and inform future fraction standards and concepts.

#### Students construct arguments and explain if a given shape includes unit (equal sized) fractions.

#### Creating a debate format to probe student thinking about complex shapes allows students to analyze and critique thinking and explanations.

#### Students can predict whether the value should be more or less than one by deciding if the fraction is more or less than one.

#### If you were really hungry, would you want 1/4 of a large pizza, or a quarter of a small pizza? This is the type of question students will be able to answer after this experience.

Big Idea:

#### Students use math, music and technology in this engaging lesson on fractions!

#### Fraction strips and concrete models can be used to help students understand the size of the parts of a fraction

#### After a large unit like fractions, it is important to assess the students ability to apply and communicate their knowledge. These two very different activities will help you assess and record your student's learning according to the Common Core Standards.

Big Idea: