Teaching for Conceptual Understanding: Exciting...
Transcript of Teaching for Conceptual Understanding: Exciting...
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Teaching for Conceptual Understanding:
Exciting Mathematics
Juanita CopleyProfessor,
College of Education, University of HoustonAuthor,
Scott Foresman-Addison Wesley
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What does BIG mean?
…It’s a difficult concept!
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What is a Concept? (Big Idea)
Operation Meaning and Relationships
There are multiple interpretations for addition, subtraction , multiplication, and division of rational numbers, and each operation is related to other operations.
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What is understanding?
“We understand something if we see how it is related or connected to other things we know.”
J. Hiebert, Signposts for Teaching Mathematics thro ugh Problem Solving In F. Lester & R. Charles, Teaching Mathemat ics Through Problem Solving , Grades PreK-6. NCTM: Reston, VA, 2003 .
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How are Connections Made?
NOT in a Linear Fashion
In a Web or Net of Ideas
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How Many Snaps?
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How would you solve this?
½ x 2/3 =
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January, 2007Sunday Monday Tuesday Wednesday Thursday Friday Saturday
1 2 3 4 5 6
7 8 9 10 11 12 13
14 15 16 17 18 19 20
21 22 23 24 25 26 27
28 29 30 31
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A Problem Posed…
•23 CDs on EACH shelf
•3 shelves
•How many IN ALL?
3 x 20 = 60 3 x 3 = 9
60 + 9 = 69
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Adding It Up (National Research Council, 2001)
Procedural Fluency Conceptual UnderstandingStrategic CompetenceReasoning AdaptationsProductive Dispositions
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“Throughout mathematics in Kindergarten-Grade 2, students develop numerical fluency with conceptual understandingand computational accuracy. Students in Kindergarten-Grade 2 use basic number sense to compose and decompose numbers in order to solve problems requiring precision, estimation, and reasonableness .”
………..TEKS
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Students with Conceptual Understanding…
know more than isolated facts and methods,
know why a mathematical idea is important and the kinds of contexts in which it is useful,
are able to learn new ideas by connecting them to ideas they already know, and
are able to remember or retain ideas….Adding It Up, pg. 118
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How is Conceptual Understanding Taught and
Learned?
• Emphasis on BOTH IDEAS and skills (Texas Essential KNOWLEDGE and Skills).
• Problem-Based Interactive Learning
• Emphasis on Connections
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Understanding Quantity
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Making Language Connections
Act It Out!Talk It Out!
Draw It Out!
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Example: Pattern Count
One, Two, Three, Four, FIVESix, Seven, Eight, Nine, TENEleven, Twelve, Thirteen, Fourteen, FIFTEENSixteen, Seventeen, Eighteen, Nineteen
TWENTY
“That’s just how it is when you count by fives!”
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What’s Your Answer?
7
87 and one half
7 r 4
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4 Problems
ONE: Mrs. Sanchez needed to pack 60 books. Each box holds 8 books. How many boxes does she need?
TWO: There are 60 cookies. Eight boys want to share them equally. How many cookies should each of them get?
THREE: 60 divided by 8FOUR: There are 60 students on a field trip.
Each minivan holds 8 students. How many minivans are full?
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Third Grade Quilt Problem
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Measuring with Kindergartners
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Mathematicians make meaning in their world by setting up quantifiable and spatial relationships , by noticing patterns and transformations, by proving them as generalizations, and by searching for elegant solutions. They construct new mathematics to solve real problems or to explain or prove interesting patterns , relationships or puzzles in mathematics itself.
… Fosnet and Dolk, 2001
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“You always have lots of problems teacher! Come by any time and we will help!”
… Houston 1st Grader