8th Grade Mathematics Missouri Learning Standards*
According to the Missouri Learning Standards, 8th grade Mathematics instructional time should focus on five critical areas.
NUMBER SENSE AND OPERATIONS (CC Unit 4)
Video: Introduction to rational and irrational numbers (5:54 mins)
Video: Recognizing rational and irrational numbers (2:17 mins)
Video: Identifying Rational Numbers (5:46 mins)
Video: Introduction to square roots (5:23 mins)
Video: How to approximate square roots (4:47 mins)
Video: Approximating square roots to hundredths (7:11 mins)
Video: How do we Find the Square Root of a Number using the Prime Factorization Method? Part 1 (5:19 mins)
Video: How do we Find the Square Root of a Number using the Prime Factorization Method? Part 2 (3:10 mins)
Video: How do we Find the Square Root of a Number using the Long Division Method? Part 1 (8:45 mins)
Video: How do we Find the Square Root of a Number using the Long Division Method? Part 2 (4:49 mins)
Video: Introduction to cube roots (8:00 mins)
Video: Cube root of a non-perfect cube (4:50 mins)
Video: Cube root of a negative number (4:17 mins)
I can explore the real number system.
I can estimate the value and compare the size of irrational numbers and approximate their locations on a number line.
EXPRESSIONS, EQUATIONS AND INEQUALITIES (CC Units 7, 10, 11, 12)
Video: Exponent rules part 1 (9:42 mins)
Video: Exponent rules part 2 (7:43 mins)
Video: Negative Exponents in Fractions With Variables (12:37 mins)
Video: Scientific Notation Introduction – Multiplication, Division, Adding & Subtracting, Standard Form (42:05 mins)
Video: Directly and Inversely Proportional Relationships (9:23 mins)
Video: Recognizing direct and inverse variation (7:04 mins)
Video: Direct Inverse and Joint Variation Word Problems (20:44 mins)
Video: Algebra: Linear equations 1 (7:27 mins)
Video: Algebra: Linear equations 2 (6:06 mins)
Video: Algebra: Linear equations 3 (6:44 mins)
Video: Solving Multi-step Equations With Variables on Both Sides – Parentheses, Fractions, Decimals (1:24:49 mins)
Video: Graphing Linear Equations In Slope Intercept and Standard Form (12:43 mins)
Video: Slope Intercept Form y=mx+b, Point Slope & Standard Form, Parallel & Perpendicular (43:58 mins)
Video: Solving Inequalities Interval Notation, Number Line, Absolute Value, Fractions & Variable (30:43 mins)
Video: Solving Systems of Equations By Elimination With 2 and 3 Variables & Fractions (25:54 mins)
I can know and apply the properties of integer exponents to generate equivalent expressions.
I can investigate concepts of square and cube roots.
I can express very large and very small quantities in scientific notation and approximate how many times larger one is than the other.
I can use scientific notation to solve problems.
I can graph proportional relationships.
I can apply concepts of slope and y-intercept to graphs, equations and proportional relationships.
I can solve linear equations and inequalities in one variable.
I can analyze and solve systems of linear equations.
GEOMETRY AND MEASUREMENT (CC Units 1, 2, 3, 5, 13, 14)
Video: Introduction to transformations (7:22 mins)
Video: Rotating about arbitrary point (10:31 mins)
Video: Dilating from an arbitrary point (2:45 mins)
Video: Comparing side lengths after dilation (2:12 mins)
Video: Thinking about dilations (2:38 mins)
Video: Introduction to the Pythagorean theorem (8:34 mins)
Video: Pythagorean theorem 1 (4:31 mins)
Video: Pythagorean theorem 2 (4:16 mins)
Video: Pythagorean theorem in 3D (5:55 mins)
Video: Surface area of a box (2:24 mins)
Video: Surface area of a box using nets (4:43 mins)
TFC STEM Video Lesson: Calculating the Volume of a Cylinder (2:02 mins)
I can verify experimentally the congruence properties of rigid transformations.
I can understand that two-dimensional figures are congruent if a series of rigid transformations can be performed to ma the pre-image to the image.
I can describe the effect of dilations, translations, rotations and reflections on two-dimensional figures using coordinates.
I can understand that two-dimensional figures are similar if a series of transformations (rotations, reflections, translations and dilations) can be performed to map the pre-image to the image.
I can explore angle relationships and establish informal arguments.
I can use the Pythagorean Theorem to determine unknown side lengths in right triangles in problems in two- and three-dimensional contexts.
I can solve problems involving surface area and volume.
DATA ANALYSIS, STATISTICS AND PROBABILITY (CC Unit 8)
Video: Constructing a scatter plot (2:31 mins)
Video: Statistics Scatter Plots & Correlations (7:59 mins)
Video: Studying, shoe size, and test scores scatter plots (2:25 mins)
Video: Scatter Plots and Lines of Best Fit (15:46 mins)
Video: Interpreting two-way tables (1:43 mins)
I can construct and interpret scatter plots of bi-variate measurement data to investigate patterns of association between two quantities.
I can generate and use a trend line for bi-variate data, and informally assess the fit of the line.
I can interpret the parameters of a linear model of bi-variate measurement data to solve problems.
FUNCTIONS (CC Units 6, 9)
Video: What is a function? (7:25 mins)
Video: What is a function? | Functions and their graphs (7:56 mins)
Video: Functions Part 2 (9:53 mins)
Video: Functions Part 3 (9:14 mins)
Video: Functions Pa rt 4 (6:07 mins)
Video: Recognizing linear functions (4:00 mins)
Video: Linear function example: spending money (5:21 mins)
Video: Linear and nonlinear functions (example 1) (2:25 mins)
Video: Linear and nonlinear functions (example 2) (3:34 mins)
Video: Linear and nonlinear functions (example 3) (2:12 mins)
Video: Interpreting a graph exercise example (2:22 mins)
I can explore the concept of functions. (The use of function notation is not required.)
I can compare characteristics of two functions each represented in a different way.
I can use functions to model linear relationships between quantities.
I can describe the functional relationship between two quantities from a graph or a verbal description.