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Selecting, Designing & Using
Mathematical Tasks in the K-5 Classroom
Critical Question…

o What mathematics matters for

What
teaching?
Distinguishes o Is it different from mathematics
Mathematical knowledge as known and used by
mathematicians, engineers, biologists,
Knowledge
candy sellers? If so, how can we
From The
characterize what makes it different?
Specialized o What of that mathematics is “content,”
Knowledge
and what is more properly called by
other names such as “practices,”
Needed For
“sensibilities,” or “orientations”?
Teaching
Mathematics? o What is the difference between “pure”

content knowledge and knowledge used
in pedagogical situations?
Mathematical Knowledge for
Teaching
Common mathematical knowledge
 Number halfway between 1.1 and 1.2

Specialized knowledge for teaching mathematics
 Representing mathematical ideas and operations
 Providing explanations for mathematical ideas and

procedures
 Appraising unusual student methods, claims, or
solutions
Examining Mathematical
Knowledge
Solve:

25 x 35 = ?
Appraising Unusual Student Solutions
Student A

35
x 25
125
+750 _
875

Student B

35
x 25
175
+700 _
875

Student C

35
x 25
25
150
100
+600
875

Which of these students is using a method that could
be used to multiply any two whole numbers?
Reflect and Discuss
o What did you do to solve the original

problem of 25 x 35?
o What did you do to solve the task
concerning the varied student solutions?
o What was different in the way you thought
mathematically about each task, and what
you needed to know?
Subject Matter
Knowledge

Common
Content
Knowledg
e (CCK)
Knowledge
at the
mathematica
l horizon

Pedagogical Content Knowledge

Specialize
d Content
Knowledg
e (SCK)

Knowledge
of Content
and Students
(KCS)
Knowledge of
Content and
Teaching (KCT)

Knowledg
e of
Curriculu
m

Diagram created by Deborah Ball & colleagues, University of Michigan

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Mathematical knowledgeforteaching

  • 1. Selecting, Designing & Using Mathematical Tasks in the K-5 Classroom
  • 2. Critical Question… o What mathematics matters for What teaching? Distinguishes o Is it different from mathematics Mathematical knowledge as known and used by mathematicians, engineers, biologists, Knowledge candy sellers? If so, how can we From The characterize what makes it different? Specialized o What of that mathematics is “content,” Knowledge and what is more properly called by other names such as “practices,” Needed For “sensibilities,” or “orientations”? Teaching Mathematics? o What is the difference between “pure” content knowledge and knowledge used in pedagogical situations?
  • 3. Mathematical Knowledge for Teaching Common mathematical knowledge  Number halfway between 1.1 and 1.2 Specialized knowledge for teaching mathematics  Representing mathematical ideas and operations  Providing explanations for mathematical ideas and procedures  Appraising unusual student methods, claims, or solutions
  • 5. Appraising Unusual Student Solutions Student A 35 x 25 125 +750 _ 875 Student B 35 x 25 175 +700 _ 875 Student C 35 x 25 25 150 100 +600 875 Which of these students is using a method that could be used to multiply any two whole numbers?
  • 6. Reflect and Discuss o What did you do to solve the original problem of 25 x 35? o What did you do to solve the task concerning the varied student solutions? o What was different in the way you thought mathematically about each task, and what you needed to know?
  • 7. Subject Matter Knowledge Common Content Knowledg e (CCK) Knowledge at the mathematica l horizon Pedagogical Content Knowledge Specialize d Content Knowledg e (SCK) Knowledge of Content and Students (KCS) Knowledge of Content and Teaching (KCT) Knowledg e of Curriculu m Diagram created by Deborah Ball & colleagues, University of Michigan