 Unit 4

Fraction, Equivalence, Ordering, and Operations

Math

Description:

In Unit 3, fourth-grade students understand, recognize and generate equivalent fractions.  Students will compare fractions with different numerators and denominators.  Students will create line plots and solve simple word problems involving the fractions found on the line plot.

Students will add and subtract fractions with like denominators, for example, 3 fifths + 1 fifth = 4 fifths.  Students begin with models such as the area model, manipulatives, and number lines, then progress to an equation. During this unit, students will multiply a fraction by a whole number.  Students will use models and equations to solve word problems involving addition and subtraction of fractions with like denominators and multiplication of a fraction by a whole number.

Louisiana Student Standards for Mathematics (LSSM)

Enduring Understandings:

·         Fractions can be composed and decomposed from unit fractions.

·         Mixed numbers and improper fractions can be used interchangeably.

·         Fractions can be represented visually and in written form.

·         Fractions of the same whole can be compared.

·         Fractional numbers and mixed numbers can be added, subtracted, and multiplied.

Essential Questions:

·         What is a fraction, what does it represent, and how can it be represented?

·         What is a mixed number and how can it be represented?

·         How can common numerators or denominators be created?

·         How can equivalent fractions be identified?

·         How can fractions with different numerators and different denominators be compared?

·         How can fractions and mixed numbers be used interchangeably?

·         How do we apply our understanding of fractions in everyday life?

·         How can you use fractions to solve addition, subtraction, and multiplication problems?

·         How do we add fractions with like denominators?