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+ or - |
STANDARD
4.3 (PATTERNS AND ALGEBRA) ALL STUDENTS WILL REPRESENT AND
ANALYZE RELATIONSHIPS AMONG VARIABLE QUANTITIES AND SOLVE PROBLEMS
INVOLVING PATTERNS, FUNCTIONS, AND ALGEBRAIC CONCEPTS AND PROCESSES.
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B.
Functions and Relationships |
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By the end of Grade 2, students will: |
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1. Use
concrete and pictorial models of function machines to explore the basic
concept of a function. |
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Building upon knowledge and
skills gained in preceding grades, by the end of Grade 3, students will: |
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1.
Use concrete
and pictorial models to explore the basic concept of a function.
·
Input/output
tables, T-charts |
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Building upon knowledge and
skills gained in preceding grades, by the end of Grade 4, students will: |
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1.
Use concrete
and pictorial models to explore the basic concept of a function.
·
Input/output
tables, T-charts
·
Combining
two function machines
·
Reversing a
function machine |
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Building upon knowledge and
skills gained in preceding grades, by the end of Grade 5, students will: |
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1.
Describe arithmetic operations as functions, including
combining operations and reversing them. |
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2.
Graph points satisfying a function from T-charts, from
verbal rules, and from simple equations. |
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Building upon knowledge and
skills gained in preceding grades, by the end of Grade 6, students will: |
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1.
Describe the
general behavior of functions given by formulas or verbal rules (e.g.,
graph to determine whether increasing or decreasing, linear or not). |
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Building upon knowledge and
skills gained in preceding grades, by the end of Grade 7, students will: |
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1.
Graph
functions, and understand and describe their general behavior.
·
Equations
involving two variables |
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Building upon knowledge
and skills gained in preceding grades, by the end of Grade 8, students
will: |
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1.
Graph
functions, and understand and describe their general behavior.
·
Equations
involving two variables
·
Rates of
change (informal notion of slope) |
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2.
Recognize
and describe the difference between linear and exponential growth, using
tables, graphs, and equations. |
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Building upon knowledge and skills gained in
preceding grades, by the end of Grade 12, students will: |
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1.
Understand relations and functions and select, convert
flexibly among, and use various representations for them, including
equations or inequalities, tables, and graphs. |
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2.
Analyze and
explain the general properties and behavior of functions of one
variable, using appropriate graphing technologies.
·
Slope of a
line or curve
·
Domain and
range
·
Intercepts
·
Continuity
·
Maximum/minimum
·
Estimating
roots of equations
·
Intersecting
points as solutions of systems of equations
·
Rates of
change |
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3.
Understand
and perform transformations on commonly-used functions.
·
Translations, reflections, dilations
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Effects on
linear and quadratic graphs of parameter changes in equations
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Using
graphing calculators or computers for more complex functions |
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4.
Understand
and compare the properties of classes of functions, including
exponential, polynomial, rational, and trigonometric functions.
·
Linear vs.
non-linear
·
Symmetry
·
Increasing/decreasing on an interval |