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 models to demonstrate a proof of the Pythagorean Theorem and its converse.

  • 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)

 

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 investigate the difference between linear and nonlinear functions.

  • 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.

 

* Sources:  dese.mo.gov (GLE’s for “I can…” statements), Khan Academy (Video)