Reflection: Developing a Conceptual Understanding Decomposing and Composing Fractions - Section 3: Closure


From past experiences, I have learned to never assume what a student knows.  Just because a student can add and subtract fractions, they may not know how to decompose or compose fractions.  It may have something to do with not being familiar with the terminology.  Whatever the case, as teachers, we should at least do "mini" lessons on a concept to check for understanding.  

My students must take the Constructive Response Assessment three times a year.  This is an assessment provided by the state.  I noticed that my students did not understand composing and decomposing fractions during the first assessment.  Therefore, this lesson is very important to make sure my students are successful when they are required to use the skill in the future.

  Never Assume
  Developing a Conceptual Understanding: Never Assume
Loading resource...

Decomposing and Composing Fractions

Unit 1: Fractions
Lesson 14 of 22

Objective: SWBAT break apart fractions to their unit fractions, then compose them back.

Big Idea: Fractions can be broken apart into unit fractions.

  Print Lesson
Math, Fractions, Number Sense and Operations, fraction composition, fraction strips, fraction decomposition, manipulatives, unit fractions
  50 minutes
students working on decomposing fractions
Similar Lessons
Understand Fractions
4th Grade Math » Fraction Equivalents and Ordering Fractions
Big Idea: Students will use fraction strips and begin discovering fractional relationships.
Helena, MT
Environment: Suburban
Melissa Romano
Decomposing Submarine Sandwiches
4th Grade Math » Fractions
Big Idea: Students will decompose paper submarine sandwiches into fraction equations.
Environment: Urban
Kara Nelson
Oranges,Social Studies, Sister Anne and Studying the Whole: An integrated lesson
4th Grade Math » Division Unit
Big Idea: In this authentic lesson, students use mandarin oranges to figure out how to create equal parts of a whole, discover why fractions exist in relation to that whole and connect it all to division. The lesson is interlaced with a lesson on prejudice.
Genoa City, WI
Environment: Rural
Mary Ellen Kanthack
Something went wrong. See details for more info
Nothing to upload