Fractions with Borrowing
Grade 4 / Math / Fractions
CCSS:
Math.5.NF.A.1
Common Core State Standards
Math 
Math 
5 
Grade 5 
NF 
Numbers & OperationsFractions 
A 
Use equivalent fractions as a strategy to add and subtract fractions 
1 
Add and subtract fractions with unlike denominators (including mixed numbers) by replacing given fractions with equivalent fractions in such a way as to produce an equivalent sum or difference of fractions with like denominators. For example, 2/3 + 5/4 = 8/12 + 15/12 = 23/12. (In general, a/b + c/d = (ad + bc)/bd.) 
Download Common Core State Standards (PDF 1.2 MB) 
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 Lesson Objective
 Use decomposition to subtract fractions and mixed numbers
 Length
 14 min
 Questions to Consider
 How do the pizzas help students explain what borrowing 'looks' like with fractions?
 Why is the 'think aloud' an important part of making our thinking transparent?
 What strategies does Ms. Gonzalez use to check for student understanding?
Teacher & School Info
 School Details
 Santa Fe Elementary School Baldwin Park, CA
 Population
 371 students
 District Spending
 $7,833
Supporting Materials

Transcript for Tough to Teach – Fractions With Borrowing

Fractions
Lesson plans for fractions