Reflection: Problem-based Approaches Birthday Cake Fractions! How much cake is left? - Section 3: Concept development

 

As you can see in my video reflection, using the birthday cake problem is a great way to make connections between fraction bar models (or area models) and the computation algorithm of making equivalent fractions.  I chose this problem for several reasons. One, I like that this problem asks students to use a model and a computation method. I feel like this helps students see and realize that models serve a purpose and help make the algorithm make sense. I also like this problem because it's relatively engaging for fourth grade students.  In my classroom, we always make a "big deal" about birthdays, so birthday cake as the subject of a math problem is engaging for my students. 

 

  Making Sense of Problems
  Problem-based Approaches: Making Sense of Problems
Loading resource...
 

Birthday Cake Fractions! How much cake is left?

Unit 6: Fraction Equivalents and Ordering Fractions
Lesson 12 of 14

Objective: SWBAT create common denominators to create equivalent fractions in order to compare fractions.

Big Idea: In this lesson, students compare fractions by creating same denominators and drawing a model to show how much birthday cake is left.

  Print Lesson
1 teacher likes this lesson
Subject(s):
Math, Fractions, Number Sense and Operations, problem solving, equivalent fractions, comparing fractions, common denominator, modeling mathematics, common numerator
  62 minutes
birthday cake
 
1
2
3
4
Similar Lessons
 
Many Names for Fractions
6th Grade Math » Fraction Operations
Big Idea: What does it mean for two fractions to be called equivalent? Students develop strategies for generating equivalent fractions and simplifying fractions.
  Favorites(25)
  Resources(22)
Somerville, MA
Environment: Urban
Andrea Palmer
 
Modeling with Box Diagrams on the iPad (day 2 of 2)
7th Grade Math » Exploring Rational Numbers
Big Idea: Students represent the percent as a fraction in order to set up a box diagram.
  Favorites(1)
  Resources(18)
Dixon, CA
Environment: Suburban
Erica Burnison
 
Exploring Equivalent Fractions
4th Grade Math » Fractions
Big Idea: Students will investigate the meaning of equivalent fractions using models.
  Favorites(18)
  Resources(43)
MT
Environment: Urban
Kara Nelson
 
Something went wrong. See details for more info
Nothing to upload
details
close