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MAKING LINEAR ALGEBRA CONNECTIONS
C. Ray Rosentrater
Westmont College
2012 Joint Mathematics Meetings
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MAKING CONNECTIONS
An Overview of the Issue
A Daily Activity
An Exam Review Activity
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THE VOCABULARY OF CALCULUS 1
Limit
Continuity
Derivative
Increasing/Decreasing
Maximum/Minimum
Concave Up/Down
Critical/Inflection Point
Riemann Sum
Integral
The number of concepts
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THE VOCABULARY OF LINEAR ALGEBRA
Elementary row
operation
Pivot position/column
Row Equivalent
(Reduced) Echelon
Form
Elementary matrix
Onto
One-to-One
Identity
Inverse
Linear Transformation
Span
Linear Combination
Linearly Independent
Homogeneous Equation
Singular
The number of concepts
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THE VOCABULARY OF CALCULUS 1
Limit
Continuity
Derivative
Increasing/Decreasing
Maximum/Minimum
Concave Up/Down
Critical/Inflection Point
Riemann Sum
Integral
The level of abstraction at which the terms must be understood
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THE VOCABULARY OF LINEAR ALGEBRA
Elementary row
operation
Pivot position/column
Row Equivalent
(Reduced) Echelon
Form
Elementary matrix
Onto
One-to-One
Identity
Inverse
Linear Transformation
Span
Linear Combination
Linearly Independent
Homogeneous Equation
Singular
The level of abstraction at which the terms must be understood
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SOLUTION 1: DAILY VOCABULARY QUIZ
Word from previous lecture with most
application to the current topic
Scored on 2-point scale
Drop n lowest scores
Very modest weight on final grade
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BENEFITS
Provides a natural review
Focuses attention on vocabulary
Reduces absenteeism and tardiness
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THE VOCABULARY OF CALCULUS 1
Limit
Continuity
Derivative
Increasing/Decreasing
Maximum/Minimum
Concave Up/Down
Critical/Inflection Point
Riemann Sum
Integral
The density of connections between concepts
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THE VOCABULARY OF LINEAR ALGEBRA
Elementary row
operation
Row Equivalent
(Reduced) Echelon
Form
Pivot position/column
Elementary matrix
Onto
One-to-One
Identity
Inverse
Linear Transformation
Span
Linear Combination
Linearly Independent
Homogeneous Equation
Singular
The density of connections between concepts
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SOLUTION 2: REVIEW ACTIVITY
Two randomly selected words
Three randomly selected student names
Define and Connect
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BENEFITS
Additional attention to vocabulary
Chance to address common issues in content
and style
Creates a connection-oriented mindset
It’s fun! (provided you have an affirming class atmosphere)