UNIT PREPARATION

Display the Math Practices page where all students can see it.

If you have not done so already, attach Small Multiplication Tables to students' desks for reference. (See Unit 4.)

Gather sets of Fraction Circle Pieces. (See Lesson 6.)

Gather a set of measuring cups of different sizes: 1/8, 1/4, 1/2, 3/4, 1 cup (Lesson 8).

Students will need the following tools readily available for the Daily Practice and Problems items in this unit:

LESSON SESSIONS DESCRIPTION SUPPLIES

LESSON 1

Fraction Strips

1–2 Students fold uniform strips of paper into equal parts to show halves, fourths, and eighths, labeling each part according to the fraction it represents. Students use their completed strips to show specific fractions, to compare fractions, and to find equivalent fractions. In the next lesson, students expand their study as they use fraction strips to explore thirds, fourths, fifths, sixths, eighths, ninths, tenths, and twelfths.
  • scissors
  • envelopes
  • crayons, markers, or colored pencils
  • rulers

LESSON 2

More Fraction Strips

2–3 Students continue to work with fraction strips, adding to the set of whole, halves, fourths, and eighths strips they made in the last lesson. They make strips to show thirds, fifths, sixths, ninths, tenths, and twelfths. They use their strips to compare fractions and to find equivalent fractions.
  • scissors
  • envelope containing fraction strips from Lesson 1
  • crayons, markers, or colored pencils
  • rulers

LESSON 3

Add, Subtract, and Multiply with Fraction Strips

2 Students use their fraction strips from Lessons 1 and 2 to add, subtract, and multiply fractions with like denominators. Students look for patterns in number sentences to solve a problem that cannot be represented with the fraction strips.
  • set of fraction strips from Lessons 1 and 2

LESSON 4

Comparing Fractions

1 This is the first of two lessons in this unit on comparing fractions. In this lesson, students organize their fraction strips in a chart and then use the chart to compare and order fractions according to size. Students also use the fraction strips to compare fractions to the one-half benchmark.
  • fraction strips from Lessons 1 and 2
  • blank sheet of paper
  • glue

LESSON 5

Fractions on Number Lines

1 Students label number lines to show fractions. They conclude the lesson by representing both proper and improper fractions as parts of rectangles and as points on number lines.

LESSON 6

Using Circle Pieces

3 Students build on their understanding of fraction concepts by exploring circle pieces as area models to represent fractions. They name fractions given different unit wholes, identify the unit whole when given a fraction, write number sentences to describe configurations of circle pieces, and represent fractions larger than 1.
  • fraction circle pieces: red, pink, yellow, blue, orange, aqua, green, purple

LESSON 7

Workshop: Many Ways to Show a Fraction

2 Students explore representations of fractions: numbers, words, circle pieces, rectangles, fraction strips, and number lines. They play a game using circle pieces that develops flexibility representing fractions. This workshop lesson provides opportunities for students to address missing concepts, practice skills, or extend their learning as needed.
  • fraction circle pieces
  • clear plastic spinner or a paper clip and pencil
  • colored pencils or crayons (optional)

LESSON 8

Equivalent Fractions

2–3 Students find equivalent fractions using their fraction charts from Lesson 4 and the fraction circle pieces. They write number sentences to represent the equivalent fractions and look for patterns in the number sentences. They use these patterns to develop other ways to find equivalent fractions.
  • fraction circle pieces
  • chart paper

LESSON 9

Comparing Fractions Using 1/2

2 A Benchmark Number Line and the game Fraction Order provide the context for ordering and comparing fractions. Students use tools such as fraction charts, circle pieces, and benchmarks (0, 1/2 , 1) to support their reasoning.
  • sets of fraction circle pieces
  • envelope
  • small sheets of paper or index cards
  • scissors
  • calculators

LESSON 10

Multiplying Fractions by a Whole

2–3 Students use a variety of models to multiply fractions by a whole number. They build on the models (fraction strips, circle pieces, and number lines) they have been developing. Students also represent fractions of sets of discrete objects (e.g., boxes of apples). Further, they look for patterns in tables and parallel problems to start to develop generalized procedures based on the properties of multiplication.
  • fraction strips from Lessons 1 and 2
  • fraction circle pieces
  • ruler

LESSON 11

Workshop: More Than, Less Than, or Equal To

1 Students explore comparing, ordering, and finding equivalent fractions using a variety of representations. This workshop lesson provides opportunities for students to revisit concepts in new contexts, practice skills, apply concepts, or extend their learning.
  • fraction circle pieces
  • index cards or small sheets of paper
  • Benchmark Number Line on chart paper from Lesson 9

LESSON 12

Fraction Puzzles

1–2 Given clues, students work in groups of four to solve fraction puzzles. After solving the fourth fraction puzzle, students work independently to explain their solutions and to communicate their problem-solving strategies. Sample student work and the Math Practices page are used as guides for exemplary work.
  • red, pink, orange, yellow, aqua, and blue fraction circle pieces
  • envelopes or paper clips for storing puzzles