Lesson plan

Fraction Action: Rectangles

Let's divide! In this hands-on lesson, your students will get in on some fraction action when they pair up to create and compare fraction models with the same denominator.
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Students will be able to compare fractions with like denominators with a model to support their thinking.

(5 minutes)
Fraction Rectangles
  • Gather students together, and review key terms.
  • Remind the students that the NumeratorIs the number on top in a fraction, and the DenominatorIs on the bottom. Explain that Greater thanMeans bigger in value while Less thanMeans smaller in value.
  • Tell students that they will work on comparing fractions with like denominators.
  • Explain that s it is important to note whether the denominators are the same to compare the same whole.
(10 minutes)
  • Show students a model of 2 circles. Model dividing both of the circles into 4 equal parts. Shade ¼ and ¾ on the different circles.
  • Discuss with students which is greater.
  • Show students a third circle. Divide this circle into 3 parts. Shade 1 of the parts. Direct students to compare the circle showing ¼ and 1/3.
  • Discuss with students how both have the same numerator but different denominators. Emphasize the importance of looking at the part shaded in view of the whole circle.
  • Repeat and continue to discuss this concept using more examples.
(15 minutes)
  • Give each student a Fraction Rectangles worksheet.
  • Have students cut out each large rectangle and shade the amount of parts of their choosing.
  • Divide students into pairs. Have students compare the fractions and record the relationship using the signs. For example, if one student colored in 7 and another colored in 3, the students would write: 7/8 > 3/8.
(15 minutes)
  • Distribute a second copy of the Fraction Rectangles worksheet.
  • Instruct your students to repeat the guided practise activity individually.
  • Have students glue rectangles to the construction paper and write the numerals and correct comparison sign between the rectangles.
  • Enrichment:Direct students in need of a challenge to compare two fractions with unlike denominators.
  • Support:For students in need of support, shade in the rectangles ahead of time instead of allowing the students to choose on their own. Have them identify the numerators.
(10 minutes)
  • Show students more examples of fraction models with the same denominator.
  • Have students write the correct comparison signs on individual whiteboards to hold up for quick assessments.
  • Collect the construction paper with the rectangles to check for mastery.
(5 minutes)
  • Gather students together. Ask several students to share the rectangles they compared.
  • Have students read the signs they used in their comparisons.

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