Reflecting on Teaching & Learning About Fractions
Common Core State Standards
Math 
Math 
5 
Grade 5 
NF 
Numbers & OperationsFractions 
B 
Apply and extend previous understandings of multiplication and division 
4 
Apply and extend previous understandings of multiplication to multiply a fraction or whole number by a fraction. a. Interpret the product (a/b) × q as a parts of a partition of q into b equal parts; equivalently, as the result of a sequence of operations a × q ÷ b. For example, use a visual fraction model to show (2/3) × 4 = 8/3, and create a story context for this equation. Do the same with (2/3) × (4/5) = 8/15. (In general, (a/b) × (c/d) = ac/bd.) b. Find the area of a rectangle with fractional side lengths by tiling it with unit squares of the appropriate unit fraction side lengths, and show that the area is the same as would be found by multiplying the side lengths. Multiply fractional side lengths to find areas of rectangles, and represent fraction products as rectangular areas. 
Download Common Core State Standards (PDF 1.2 MB) 
Common Core State Standards
Math 
Math 
5 
Grade 5 
NF 
Numbers & OperationsFractions 
B 
Apply and extend previous understandings of multiplication and division 
6 
Solve real world problems involving multiplication of fractions and mixed numbers, e.g., by using visual fraction models or equations to represent the problem. 
Download Common Core State Standards (PDF 1.2 MB) 

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Planning/CollaborationHigh School Mathematical ModelingGrades 912 / Math / PD
 76
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Lesson Idea  Common CoreReflecting on Teaching & Learning: ModelingGrades 912 / Math / Teacher CollaborationMath.HSFIF.B.4
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 5
Lesson Objective
Reflect on a lesson about multiplying fractions
Length
7 min
Questions to Consider
 How did the teachers reflect on student learning?
 What did Ms. Farmer learn from watching Ms. Gray's lesson?
 How did the teachers sort and learn from student work?
Common Core Standards
Math.5.NF.B.4, Math.5.NF.B.6
Watch all the videos in this series:
Collaborating Around Math: Before, During, and After Lessons
Developing a Math Team: Online and In Person
Teacher & School Info

Alicia Farmer

Kristin Gray

Jenniefer Beltramini
 School Details
 Mount Erie Elementary School Anacortes, WA
 Population
 453 students
 District Spending
 $8,723
Supporting Materials

Reflecting on Teaching & Learning About Fractions Transcript

Illustrative Mathematics