8TH GRADE PACING GUIDE
MATH INNOVATIONS UNIT 2: LINE IT UP, Part I
Mid September-End October
Standards:
8.EE.5: Graph proportional relationships, interpreting the unit rate as the slope of the graph. Compare two different proportional relationships represented in different
ways. For example, compare a distance-time graph to a distance-time equation to determine which of two moving objects has greater speed.
8.EE.6: Use similar triangles to explain why the slope m is the same between any two distinct points on a non-vertical line in the coordinate plane; derive the equation y =
mx for a line through the origin and the equation y = mx + b for a line intercepting the vertical axis at b.
8.F.1: Understand that a function rule is a rule that assigns to each input exactly one output. The graph of a function is the set of ordered pairs consisting of an input and
the corresponding output.
8.F.2: Compare the properties of two functions each represented in a different way (algebraically, graphically, numerically in tables, or by verbal descriptions). For
example, given a linear function represented by a table of values and a linear function represented by an algebraic expression, determine which function has the greater
rate of change.
8.F.3: Interpret the equation y = mx + b as defining a linear function, whose graph is a straight line; give examples of functions that are not linear. For example, the
function A = s2 giving the area of a square as a function of its side length is not linear because its graph contains the points (1,1), (2,4), and (3,9), which are not on a straight
line.
8.F.4: Construct a function to model a linear relationship between two quantities. Determine the rate of change and initial value of the function from a description of a
relationship or from two (x,y) values, including reading these from a table or from a graph. Interpret the rate of change and initial value of a linear function in terms of a
situation it models, and in terms of its graph or a table of values.
8.F.5: Describe qualitatively the functional relationship between two quantities by analyzing a graph (e.g., where the function is increasing or decreasing, linear or
nonlinear). Sketch a graph that exhibits the qualitative features of a function that has been described verbally.
8.SP.3: Use the equation of a linear model to solve problems in the context of bivariate measurement data, interpreting the slope and intercept. (For example, in a linear
model for a biology experiment, interpret a slope of 1.5 cm/hr as meaning that an additional hour of sunlight each day is associated with an additional 1.5 cm in mature
plant height.)
Standard/Target
8.F.1 Target: Understand that a function is a rule that assigns
to each input exactly one output. The graph of a function is
the set of ordered pairs consisting of an input and the
corresponding output.
8.F.2 Knowledge Target: Identify functions using graphs.
Knowledge Target: Identify functions using tables.
Section/Lesson
Section 1: Relationships on the
Coordinate Plane
1.3: Relating Tables and Graphs
Integer Quiz: Multiplying and Dividing
Integers
1.4: Linear Functions
*Add: Provide examples of nonlinear
functions using multiple representations.
*Add: Compare the characteristics of
linear and nonlinear functions using
various representations.
Lewis County Middle School
# Days
Day 29
Formative Assessment
ACT:
2
A11
2
A10, B4, C1, C17
Standard/Target
Knowledge Target: Identify functions using verbal
descriptions. Reasoning Target: Compare and contrast two
functions with different representations. Reasoning Target:
Draw conclusions based on different representations of
functions.
8.F.3 Knowledge Target: Recognize that a linear function is
graphed as a straight line. Knowledge Target: Provide
examples of nonlinear functions using multiple
representations. Reasoning Target: Compare the
characteristics of linear and nonlinear functions using various
representations.
Percent Proficiency:
8.F.4 Knowledge Target: Recognize that slope is determined
by the constant rate of change. Knowledge Target:
Determine the rate of change from two (x,y) values, a verbal
description, values in a table, or graph.
8.EE.6 Knowledge Target: Identify characteristics of similar
triangles. Knowledge Target: Find the slope of a line.
Reasoning Target: Use similar triangles to explain why the
slope m is the same between any two distinct points on a
non-vertical line in the coordinate plane.
8.F.4 Reasoning Target: Construct a function to model a
linear relationship between two quantities.
8.EE.6 Reasoning Target: Derive an equation of the form y =
mx for a line through the origin.
Percent Proficiency:
8.EE.5 Knowledge Target: Graph proportional relationships.
Reasoning Target: Compare two different proportional
relationships represented in different ways. For example,
compare a distance-time graph to a distance-time equation
to determine which of two moving objects has a greater
speed. Reasoning Target: Interpret the unit rate of
proportional relationships as the slope of the graph.
8.EE.6 Knowledge Target: Determine the y-intercept of a
Section/Lesson
# Days
Formative Assessment
1.5: Using a Graphing Calculator
Study Guide
Quiz
Section 2: Analyzing Change
2.1: Exploring Rates of Change
Integer Quiz: Mixed Operations
2.2: Exploring Slope
3
1
1
Day 41
3
2.3: Slope as the Ratio rise/run
2
2.4: Increasing and Decreasing Functions
2
C3
Study Guide
Quiz
Section 3: Analyzing Linear Functions
3.1: More about Slope
1
1
Day 45
2
ACT:
A3, B3, C5
Lewis County Middle School
A2
ACT:
A7
3
Standard/Target
line. Reasoning Target: Analyze patterns for points on a line
through the origin. Reasoning Target: Analyze patterns for
points on a line that do not pass through or include the
origin. Reasoning Target: Derive an equation of the form y =
mx + b for a line intercepting the vertical axis at b (the yintercept).
8.F.2 Knowledge Target: Identify functions algebraically
including slope and y-intercept.
8.F.3 Knowledge Target: Recognize the equation y = mx + b
is the equation of a function whose graph is a straight line
where m is the slope and b is the y-intercept.
8.F.4 Knowledge Target: Recognize that the y-intercept is
the initial value where x = 0. Knowledge Target: Determine
the initial value from two (x,y) values, a verbal description,
values in a table, or graph. Reasoning Target: Relate the
rate of change and initial value to real world quantities in a
linear function in terms of the situation modeled and in
terms of its graph or a table of values.
8.F.5 Knowledge Target: Analyze a graph and describe the
functional relationship between two quantities using the
qualities of the graph. Knowledge Target: Sketch a graph
given a verbal description of its qualitative features.
Reasoning Target: Interpret the relationship between x and
y values by analyzing a graph.
8.SP.3 Knowledge Target: Find the slope and intercept of a
linear equation. Reasoning Target: Interpret the meaning of
the slope and intercept of a linear equation in terms of the
situation. (For example, in a linear model for a biology
experiment, interpret a slope of 1.5 cm/hr as meaning that
an additional hour of sunlight each day is associated with an
additional 1.5 cm in mature plant height.) Reasoning Target:
Solve problems using the equation of a linear model.
Percent Proficiency:
Percent Proficiency:
Section/Lesson
Integer Quiz: Operations with Negative
Rationals
Graph lines written in standard form with
and without graphing calculators
Study Guide
Quiz
Study Guide
Unit Exam
Lewis County Middle School
# Days
8
1
1
1
1
Formative Assessment
Lewis County Middle School
Lewis County Middle School
Lewis County Middle School
Lewis County Middle School
Lewis County Middle School
Lewis County Middle School
Lewis County Middle School
Lewis County Middle School
Lewis County Middle School
Lewis County Middle School
Lewis County Middle School