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Eighth Grade
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Big Ideas & Topics
Data Analysis & Graphing
Bivariate Sets of Data
Using Trend Lines with Bivariate Sets of Data
Scatterplots with Linear, Non-linear, & No Associations
Determining the Mean Absolute Deviation
Generating Random Samples of Populations
Geometry & Measurement
Ratios of Corresponding Sides
Attributes of Shapes & Dilations on a Coordinate Plane
Effect of Positive Rational Scale Factor
Describing the Volume Formula of a Cylinder
Relationship Between the Volume of a Cylinder & a Cone
Using Models & Diagrams to Explain the Pythagorean Theorem
Volume of Cylinders, Cones, & Spheres
Lateral & Total Surface Area Involving Rectangular Prisms, Triangular Prisms, & Cylinders
Using the Pythagorean Theorem
Determining Distance using the Pythagorean Theorem
Angle Sum & Exterior Angles of Triangles
Properties of Orientation & Congruence on a Coordinate Plane
Differentiate between Transformations
Effects of Translations, Reflections, & Rotations on a Coordinate Plane
Modeling Linear & Area Measurements
Number Computations
Using Right Triangles to Develop Understanding of Slope
Graphing Proportional Relationships
Using Data to Determine the Slope & y-Intercept
Representing Linear Proportional Situations
Representing Linear Non-Proportional Situations
Solving Problems Involving Direct Variation
Distinguishing Between Proportional & Non-Proportional Situations
Identifying Functions
Identifying Examples of Proportional & Non-Proportional Functions
Using y = mx + b to Model Linear Relationships
Writing One-Variable Equations & Inequalities
Writing Real-World Problems Given an Equation or Inequality
Modeling & Solving One-Variable Equations
Identifying & Verifying the Values of x & y
Number Relationships
Relationships Between Sets of Numbers
Approximating the Value of Irrational Numbers
Standard Decimal Notation & Scientific Notation
Ordering a Set of Real Numbers
Personal Financial Literacy
Comparing Interest Rates & Loan Length
Calculating the Cost of Repaying a Loan
Investing Regularly
Calculate & Compare Simple & Compound Interest Earnings
Advantages & Disadvantages of Various Payment Methods
Analyzing Financial Responsible Decisions
Estimating Costs of a College Education
T.i.P.S.
Students should be able determine whether a relation is a
function
by using ordered pairs, tables,
maps
, and graphs.
Example
Which representation does not show
y
as a function of
x
?
a) I and II
b) I, II, and III
c) I and IV
d) All of the above are functions
Hint
Possible Solutions
Digital Tools
Click on the following links for interactive games.
Identify Functions
Using Tables for Linear Functions
Completing Tables & Graphs for Linear Functions
Interpret the Graph of a Linear Function
Resources
Click on the following links for more information.
TEKS
Readiness Standard
8.5 Proportionality. The student applies
mathematical process standards
to use
proportional
and
non-proportional relationships
to develop foundational concepts of
functions
. The student is expected to:
(G) identify
functions
using sets of ordered pairs, tables,
mappings
, and graphs
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