A Passion for Fractions
Common Core State Standards
Math 
Math 
5 
Grade 5 
NF 
Numbers & OperationsFractions 
B 
Apply and extend previous understandings of multiplication and division 
4b 
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 
Practice 
Mathematical Practice Standards 
MP2 
Reason abstractly and quantitatively. Mathematically proficient students make sense of quantities and their relationships in problem situations. They bring two complementary abilities to bear on problems involving quantitative relationships: the ability to decontextualizeto abstract a given situation and represent it symbolically and manipulate the representing symbols as if they have a life of their own, without necessarily attending to their referents—and the ability to contextualize, to pause as needed during the manipulation process in order to probe into the referents for the symbols involved. Quantitative reasoning entails habits of creating a coherent representation of the problem at hand; considering the units involved; attending to the meaning of quantities, not just how to compute them; and knowing and flexibly using different properties of operations and objects. 
Download Common Core State Standards (PDF 1.2 MB) 
Common Core State Standards
Math 
Math 
Practice 
Mathematical Practice Standards 
MP3 
Construct viable arguments and critique the reasoning of others. Mathematically proficient students understand and use stated assumptions, definitions, and previously established results in constructing arguments. They make conjectures and build a logical progression of statements to explore the truth of their conjectures. They are able to analyze situations by breaking them into cases, and can recognize and use counterexamples. They justify their conclusions, communicate them to others, and respond to the arguments of others. They reason inductively about data, making plausible arguments that take into account the context from which the data arose. Mathematically proficient students are also able to compare the effectiveness of two plausible arguments, distinguish correct logic or reasoning from that which is flawed, andif there is a flaw in an argumentexplain what it is. Elementary students can construct arguments using concrete referents such as objects, drawings, diagrams, and actions. Such arguments can make sense and be correct, even though they are not generalized or made formal until later grades. Later, students learn to determine domains to which an argument applies. Students at all grades can listen or read the arguments of others, decide whether they make sense, and ask useful questions to clarify or improve the arguments. 
Download Common Core State Standards (PDF 1.2 MB) 

Lesson Idea (Common Core)Beyond Fingers: Place Value & the Numbers 1119Grades K2 / Math / ReasoningMath.K.NBT.A.1 / Math.Practice.MP2 / Math.Practice.MP3
 634
 91

Lesson Idea (Common Core)Multiplying Whole Numbers & FractionsGrades 35 / Math / ReasoningMath.4.NF.B.4b / Math.Practice.MP2 / Math.Practice.MP3
 224
 35

Lesson Idea (Common Core)Leprechaun Traps: Addition Within 100Grades K2 / Math / ReasoningMath.1.NBT.C.4 / Math.Practice.MP2 / Math.Practice.MP3
 529
 52

Lesson Idea (Common Core)Conjecturing About FunctionsGrades 68 / Math / ReasoningMath.8.F.B.4 / Math.Practice.MP2 / Math.Practice.MP3
 79
 31

Lesson Idea (Common Core)12 O'Quad High: Trigonometry in FlightGrades 912 / Math / ReasoningMath.F.TF.5 / Math.Practice.MP2 / Math.Practice.MP3
 171
 25
Lesson Objective
Multiply a fraction by a fraction
Length
13 min
Questions to Consider
 Why does Ms. Pittard present students with a variety of solutions?
 How does critiquing solutions help students develop an understanding of multiplying fractions?
 What can you learn from Ms. Pittard about engaging all students?
Common Core Standards
Math.5.NF.B.4a, Math.Practice.MP2, Math.Practice.MP3
Watch an interactive segment from this video at Tch Video Lounge.
Teacher & School Info

Becky Pittard
 School Details
 Pathways Elementary School Ormond Beach, FL
 Population
 714 students
 District Spending
 $8,422
Supporting Materials

A Passion for Fractions Transcript

Lesson Plan: Multiplying Fractions.PDF

Lesson Plan: Shamrock Smile Mile Worksheet.PDF

A Mathmatician's Questions
Embed This Tch Video on Your Site
Just copy the code below and paste it into your html code where you want the video to appear. This latest code supports iPad, iPhone, Flash and more.
Lesson Idea (Common Core) A Passion for Fractions
Grades 35 / Math / Reasoning