**Math 7 Help Websites**

__Unit 1: Integers__**Absolute value:**https://www.khanacademy.org/math/pre-algebra/negatives-absolute-value-pre-alg/abs-value-pre-alg/v/absolute-value-and-number-lines

**Properties of Real numbers:**https://www.khanacademy.org/math/pre-algebra/order-of-operations/arithmetic_properties/v/commutative-law-of-addition

OR https://www.youtube.com/watch?v=FSQVYBtTxJI

**Distributive Property:**https://www.khanacademy.org/math/pre-algebra/order-of-operations/ditributive_property/v/the-distributive-property

**Adding Integers:**https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-negative-numbers-add-and-subtract/cc-7th-add-and-sub-integers/v/adding-integers-with-different-signs

**Subtracting Integers:**https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-negative-numbers-add-and-subtract/cc-7th-add-and-sub-integers/v/adding-and-subtracting-negative-number-examples

OR http://www.phschool.com/atschool/academy123/english/academy123_content/wl-book-demo/ph-775s.html

**Multiplying Integers:**https://www.khanacademy.org/math/arithmetic/absolute-value/mult_div_negatives/v/multiplying-positive-and-negative-numbers

**Dividing Integers:**https://www.khanacademy.org/math/arithmetic/absolute-value/mult_div_negatives/v/dividing-positive-and-negative-numbers

**Order of Operations:**https://www.khanacademy.org/math/pre-algebra/order-of-operations/order_of_operations/v/introduction-to-order-of-operations

**Graphing Points:**https://www.khanacademy.org/math/basic-geo/basic-geo-coordinate-plane/copy-of-cc-6th-coordinate-plane/v/the-coordinate-plane

__UNIT 2a: Rational Numbers__**Converting Fractions to Decimals:**https://www.khanacademy.org/math/pre-algebra/fractions-pre-alg/decimals-fractions-pre-alg/v/converting-fractions-to-decimals

**Converting Decimals to Fractions:**https://www.khanacademy.org/math/pre-algebra/fractions-pre-alg/decimals-fractions-pre-alg/v/converting-decimals-to-fractions-1-ex-1

**Estimation Strategies:**http://www.phschool.com/atschool/academy123/english/academy123_content/wl-book-demo/ph-019s.html

**Adding Fractions:**https://www.khanacademy.org/math/pre-algebra/fractions-pre-alg/fractions-unlike-denom-pre-alg/v/adding-fractions-with-unlike-denominators

**Subtracting Fractions:**https://www.khanacademy.org/math/pre-algebra/fractions-pre-alg/fractions-unlike-denom-pre-alg/v/subtracting-fractions-with-unlike-denominators

**Adding and Subtracting Fractions:**http://www.phschool.com/webcodes10/index.cfm?wcprefix=are&wcsuffix=0302&area=view

**Adding Decimals:**https://www.khanacademy.org/math/pre-algebra/decimals-pre-alg/adding-decimals-pre-alg/v/adding-decimals-example-1

**Subtracting Decimals:**https://www.khanacademy.org/math/pre-algebra/decimals-pre-alg/adding-decimals-pre-alg/v/subtracting-decimals

**Adding Mixed Numbers:**https://www.khanacademy.org/math/pre-algebra/fractions-pre-alg/mixed-number-add-sub-pre-alg/v/adding-mixed-numbers-word-problem

**Subtracting Mixed Numbers:**https://www.khanacademy.org/math/pre-algebra/fractions-pre-alg/mixed-number-add-sub-pre-alg/v/subtracting-mixed-numbers-2

**Multiplying Fractions:**https://www.khanacademy.org/math/arithmetic/fractions/multiplying_fractions/v/multiplying-fractions

**Multiplying Mixed Numbers:**https://www.khanacademy.org/math/arithmetic/fractions/mixed_number_mult_div/v/multiplying-mixed-numbers

**Dividing Fractions:**https://www.khanacademy.org/math/arithmetic/fractions/div-fractions-fractions/v/conceptual-understanding-of-dividing-fractions-by-fractions

**Dividing Mixed Numbers:**https://www.khanacademy.org/math/arithmetic/fractions/mixed_number_mult_div/v/dividing-mixed-numbers

**Multiplying Decimals:**https://www.khanacademy.org/math/pre-algebra/decimals-pre-alg/multiplying-decimals-pre-alg/v/more-intuition-on-multiplying-decimals

**Dividing Decimals:**https://www.khanacademy.org/math/arithmetic/decimals/dividing_decimals/v/dividing-decimals

__UNIT 2b: Solving Equations__**Evaluating Algebraic Expressions:**https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-expressions-and-variables/cc-6th-evaluating-expressions/v/variables-and-expressions-1

**Writing Algebraic Expressions:**https://www.khanacademy.org/math/algebra-basics/core-algebra-expressions/core-algebra-variables-and-expressions/v/writing-expressions-1

**Combining Like Terms:**https://www.khanacademy.org/math/algebra-basics/core-algebra-expressions/core-algebra-manipulating-expressions/v/combining-like-terms-2

**Combining Like Terms with the Distributive Property:**https://www.khanacademy.org/math/algebra-basics/core-algebra-expressions/core-algebra-manipulating-expressions/v/combining-like-terms-and-the-distributive-property

**Solving 1-Step Equations by Add/Subtract:**https://www.khanacademy.org/math/in-seventh-grade-math/simple-equations/equation-definition/v/adding-and-subtracting-the-same-thing-from-both-sides

**Solving 1-Step Equations by Dividing:**https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-equations-and-inequalities/cc-6th-one-step-mult-div-equations/v/simple-equations

**Solving 1-Step Equations by Multiplying:**https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-equations-and-inequalities/cc-6th-one-step-mult-div-equations/v/solving-one-step-equations-2

**Solving 2-Step Equations:**https://www.khanacademy.org/math/algebra-basics/core-algebra-linear-equations-inequalities/core-algebra-solving-basic-equations/v/equations-2

**Writing Equations:**https://www.khanacademy.org/math/algebra-basics/core-algebra-linear-equations-inequalities/core-algebra-linear-equation-word-problems/v/linear-equation-word-problem-example

**Graphing and Writing Inequalities:**https://www.khanacademy.org/math/pre-algebra/applying-math-reasoning-topic/greater-than-less-than/v/plotting-inequalities-on-a-number-line

**Solving 1-Step Inequalities by Add/Subtract:**https://www.khanacademy.org/math/algebra-basics/core-algebra-linear-equations-inequalities/core-algebra-linear-inequalities/v/inequalities-using-addition-and-subtraction

**Solve 1-Step Inequalities by Mult/Divide (neg):**https://www.khanacademy.org/math/algebra-basics/core-algebra-linear-equations-inequalities/core-algebra-linear-inequalities/v/inequalities-using-multiplication-and-division

**Solving 2-Step Inequalities:**https://www.khanacademy.org/math/algebra-basics/core-algebra-linear-equations-inequalities/core-algebra-linear-inequalities/v/solving-inequalities

__UNIT 3: 2-D Geometry__**Classifying Angles (Acute, Right, Obtuse):**https://www.khanacademy.org/math/geometry/parallel-and-perpendicular-lines/old_angles/v/acute-right-and-obtuse-angles

**Classifying Angles (Vertical, Adjacent):**https://www.khanacademy.org/math/geometry/parallel-and-perpendicular-lines/angle-types/v/vertical-adjacent-and-linearly-paired-angles

**Measuring Angles w/ Protractor:**https://www.khanacademy.org/math/basic-geo/basic-geo-angles/basic-geo-angle-basics/v/using-a-protractor

**Classifying Triangles:**https://www.khanacademy.org/math/basic-geo/basic-geo-shapes/basic-geo-classifying-shapes/v/scalene-isosceles-equilateral-acute-right-obtuse

**Triangle Angle Measure Example:**https://www.khanacademy.org/math/basic-geo/basic-geo-shapes/basic-geo-finding-angles/v/triangle-angle-example-1

**Can you construct a triangle with given sides (Stations Activity):**https://www.khanacademy.org/math/in-seventh-grade-math/seventh-practical-geometry/new-topic-2015-11-17T01:34:20.426Z/v/constructing-triangles-with-constraints

**Classifying Quadrilaterals:**https://www.khanacademy.org/math/basic-geo/basic-geo-shapes/basic-geo-classifying-shapes/v/quadrilateral-properties

**Classifying Other Polygons:**https://www.youtube.com/watch?v=LfPDFGvGbqk

**Interior Angle Sum Thm:**https://www.khanacademy.org/math/ab-sixth-grade-math/shape-space/triangles-polygons/v/sum-of-interior-angles-of-a-polygon

**Exterior Angles:**https://www.khanacademy.org/math/in-eighth-grade-math/understanding-quadrilaterals-1/sum-measures-exterior-angles-polygon/v/sum-of-the-exterior-angles-of-convex-polygon

__UNIT 4: Ratios, Rates, & Proportions__**Three forms of Ratios:**https://www.khanacademy.org/math/pre-algebra/rates-and-ratios/ratios_and_proportions/v/introduction-to-ratios-new-hd-version

**Simplifying Ratios:**https://www.khanacademy.org/math/pre-algebra/rates-and-ratios/ratios_and_proportions/v/ratios-as-fractions-in-simplest-form

**Unit Rates:**https://www.khanacademy.org/math/pre-algebra/rates-and-ratios/rates_tutorial/v/finding-unit-rates

**Unit Prices:**https://www.khanacademy.org/math/pre-algebra/rates-and-ratios/rates_tutorial/v/finding-unit-prices

**Proportional Relationships:**https://www.youtube.com/watch?v=O8UcPqfTLio

**Equivalent Proportions:**http://www.phschool.com/atschool/academy123/english/academy123_content/wl-book-demo/ph-828s.html

**Solving Proportions:**https://www.khanacademy.org/math/algebra-basics/core-algebra-linear-equations-inequalities/ratios-core-algebra/v/find-an-unknown-in-a-proportion

**Using Similar Figures (Proportions):**http://www.phschool.com/atschool/academy123/english/academy123_content/wl-book-demo/ph-830s.html

OR for Indirect Measurement: http://www.phschool.com/atschool/academy123/english/academy123_content/wl-book-demo/ph-054s.html

**Maps and Scale Drawings:**https://www.youtube.com/watch?v=GbtCgp0L3RQ

**Percent Increase:**https://www.youtube.com/watch?v=KVfRWj5CU5E

**Percent Decrease:**https://youtu.be/KVfRWj5CU5E?t=6m39s

**Tax, Tip, Commission:**https://www.youtube.com/watch?v=B2drkRxzVaM

**Markup:**https://youtu.be/AG8IWd9QrmY?t=36s

**Discount:**https://www.youtube.com/watch?v=WR8crYu0HiU

**Simple Interest:**https://www.youtube.com/watch?v=6AZijeJDmgY

**Percent Error:**https://www.youtube.com/watch?v=xqjCU-liA20

__UNIT 5: 2-D & 3-D Geometry__**Area of Parallelograms:**https://www.youtube.com/watch?v=s8OPoot0IUg

**Area of Triangles:**https://www.youtube.com/watch?v=_ywdqdLrKxY

**Area of Trapezoids:**https://www.youtube.com/watch?v=-Bl3FlzbIfE

**Area of Irregular Figures:**https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-geometry-topic/cc-6th-area/v/area-breaking-up-shape

**Radius, Diameter, & Circumference of Circles:**https://www.khanacademy.org/math/basic-geo/basic-geo-area-perimeter/basic-geo-area-circumference/v/circles-radius-diameter-and-circumference

**Area of Circles:**https://www.khanacademy.org/math/basic-geo/basic-geo-area-perimeter/basic-geo-area-circumference/v/area-of-a-circle

**Finding Circumference given Area:**https://www.khanacademy.org/math/basic-geo/basic-geo-area-perimeter/basic-geo-area-circumference/v/circumference-from-area

**Cross Sections:**https://www.khanacademy.org/math/geometry/basic-geometry/cross-sections/v/vertical-slice-of-rectangular-pyramid

**Drawing a Net:**https://www.khanacademy.org/math/basic-geo/basic-geo-volume-surface-area/basic-geo-surface-area/v/nets-of-polyhedra

**Surface Area of Prisms:**https://www.khanacademy.org/math/basic-geo/basic-geo-volume-surface-area/basic-geo-surface-area/v/surface-area-from-net

OR https://www.youtube.com/watch?v=Aigefhb-1NM

**Surface Area of Cylinders:**https://www.youtube.com/watch?v=LXBPJnlrEIQ

OR https://www.youtube.com/watch?v=sPqIqGeF4fc

**Volume of Prisms:**https://www.khanacademy.org/math/pre-algebra/measurement/volume-introduction-rectangular/v/measuring-volume-as-area-times-length

OR https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-geometry/cc-7th-area-volume-surface-area/v/solid-geometry-volume

**Volume of Cylinders:**https://www.khanacademy.org/math/basic-geo/basic-geo-volume-surface-area/basic-geo-volumes/v/cylinder-volume-and-surface-area

**Volume of Spheres:**https://www.khanacademy.org/math/basic-geo/basic-geo-volume-surface-area/basic-geo-volumes/v/volume-of-a-sphere

**Similar Solids (Surface area & Volume):**https://www.youtube.com/watch?v=dyTOqEAn3H0&feature=youtu.be&t=4s

OR http://www.phschool.com/atschool/academy123/english/academy123_content/wl-book-demo/ph-913s.html

__UNIT 6: Probability & Expected Values__**Comparing Theoretical & Experimental Probability:**https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-probability-statistics/cc-7th-theoretical-and-experimental-probability/v/comparing-theoretical-to-experimental-probabilites

**Theoretical Probability:**https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-probability-statistics/cc-7th-basic-prob/v/simple-probability

**Experimental Probability:**https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-probability-statistics/cc-7th-basic-prob/v/experimental-probability

**Interactive Coin Toss:**http://www.shodor.org/interactivate/activities/Coin/

**Sample Space:**https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-probability-statistics/cc-7th-compound-events/v/compound-sample-spaces

**Counting Principle:**https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-probability-statistics/cc-7th-compound-events/v/counting-pot-and-flower-scenarios

OR https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-probability-statistics/cc-7th-compound-events/v/tree-diagram-to-count-outcomes

**Independent Events:**https://www.khanacademy.org/math/probability/independent-dependent-probability/independent_events/v/compound-probability-of-independent-events

**Dependent Events:**https://youtu.be/_8dXfZicdJI?t=16s

**Is the Event Independent or Dependent?:**https://www.khanacademy.org/math/probability/independent-dependent-probability/dependent_probability/v/independent-events-1

__UNIT 7 Data Analysis:__**Mean, Median, Mode:**https://www.khanacademy.org/math/probability/descriptive-statistics/central_tendency/v/mean-median-and-mode

**Mean Absolute Deviation:**https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-data-statistics/cc-6-mad/v/mean-absolute-deviation

**Frequency Tables:**https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-data-statistics/dot-plot/v/frequency-tables-and-dot-plots

**Dot Plots (Line Plots):**https://www.khanacademy.org/math/early-math/cc-early-math-measure-data-topic/cc-early-math-line-plots/v/introduction-to-line-plots

**Histograms:**https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-data-statistics/histograms/v/histograms-intro

**Making a Stem-Leaf Plot:**https://www.youtube.com/watch?v=_7m0Q_m2ppg&feature=youtu.be

**Reading a Stem-Leaf Plot:**https://www.khanacademy.org/math/pre-algebra/applying-math-reasoning-topic/reading_data/v/u08-l1-t2-we3-stem-and-leaf-plots

**Reading Box-Whisker Plots:**https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-data-statistics/cc-6th-box-whisker-plots/v/reading-box-and-whisker-plots

**Creating Box-Whisker Plots:**https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-data-statistics/cc-6th-box-whisker-plots/v/constructing-a-box-and-whisker-plot

**Random Sample & Bias:**https://www.youtube.com/watch?v=lBp3NBN8kWM

**Estimating Population Size:**http://www.phschool.com/atschool/academy123/english/academy123_content/wl-book-demo/ph-869s.html

**Math 8 Website Tutorials:**

**Unit 1 – Number Sense**

**Simplifying Fractions:**https://www.khanacademy.org/math/pre-algebra/fractions-pre-alg/equivalent-fractions-pre-alg/v/fractions-in-lowest-terms

**Writing a Fraction as a Decimal:**https://www.khanacademy.org/math/pre-algebra/fractions-pre-alg/decimals-fractions-pre-alg/v/converting-fractions-to-decimals-example

**Writing a Terminating Decimal as a Fraction:**https://www.khanacademy.org/math/pre-algebra/fractions-pre-alg/decimals-fractions-pre-alg/v/converting-decimals-to-fractions-1-ex-3

**Writing a Repeating Decimal as a Fraction:**https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-numbers-operations/cc-8th-repeating-decimals/v/coverting-repeating-decimals-to-fractions-2

**Comparing and Ordering Rational Numbers:**https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-fractions-decimals/cc-7th-add-sub-rational-numbers/v/comparing-rational-numbers

**Estimating Square Roots:**https://www.khanacademy.org/math/in-eighth-grade-math/squares-square-roots/estimating-square-roots/v/approximating-square-roots

**Cube Roots:**https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-numbers-operations/cc-8th-roots/v/introduction-to-cube-roots

**Classifying Rational and Irrational Numbers:**https://www.khanacademy.org/math/pre-algebra/order-of-operations/rational-irrational-numbers/v/introduction-to-rational-and-irrational-numbers

**Unit 2 – Exponents & Scientific Notation**

**Intro to Exponents:**https://www.khanacademy.org/math/pre-algebra/exponents-radicals/World-of-exponents/v/introduction-to-exponents

**Order of Operations with Exponents:**https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-arithmetic-operations/cc-6th-order-of-operations/v/order-of-operations-with-exponents-examples

**Multiplying Exponents with same base:**https://www.khanacademy.org/math/algebra-basics/core-algebra-exponent-expressions/core-algebra-exponent-properties/v/exponent-properties-involving-products

**Dividing Exponents with the same base:**https://www.khanacademy.org/math/algebra-basics/core-algebra-exponent-expressions/core-algebra-exponent-properties/v/exponent-properties-involving-quotients

**Exponent of Zero:**https://www.khanacademy.org/math/pre-algebra/exponents-radicals/negative-exponents-tutorial/v/zero-negative-and-fractional-exponents

**Negative Exponents:**https://www.khanacademy.org/math/pre-algebra/exponents-radicals/negative-exponents-tutorial/v/negative-exponents

**Raising a Power to a Power:**https://www.khanacademy.org/math/algebra-basics/core-algebra-exponent-expressions/core-algebra-exponent-properties/v/exponent-properties-3

**Raising a Product to a Power:**https://www.khanacademy.org/math/algebra-basics/core-algebra-exponent-expressions/core-algebra-exponent-properties/v/products-and-exponents-raised-to-an-exponent-properties

**Converting between Scientific Notation and Standard Form:**https://www.khanacademy.org/math/pre-algebra/exponents-radicals/scientific-notation/v/scientific-notation

**Multiplying Scientific Notation:**https://www.khanacademy.org/math/pre-algebra/exponents-radicals/scientific-notation/v/scientific-notation-example-2

**Dividing Scientific Notation:**https://www.khanacademy.org/math/pre-algebra/exponents-radicals/computing-scientific-notation/v/multiplying-and-dividing-in-scientific-notation

**Unit 3 – Linear vs. Non-Linear**

**Solving Two-Step Equations:**https://www.khanacademy.org/math/in-seventh-grade-math/simple-equations/equation-definition/v/equations-2

**Combining Like Terms – Including Distributive:**https://www.khanacademy.org/math/algebra-basics/core-algebra-expressions/core-algebra-manipulating-expressions/v/combining-like-terms-and-the-distributive-property

**Solving Multi-Step Equations:**https://www.khanacademy.org/math/algebra-basics/core-algebra-linear-equations-inequalities/solving-fancier-linear-equations/v/multi-step-equations-1

**Determine Number of Solution in a Linear Equation:**https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-solving-equations/number-of-solutions-to-linear-equations/v/number-of-solutions-to-linear-equations

**Graphing Equations with Two Variables:**https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-linear-equations-functions/8th-solutions-to-two-var-linear-equations/v/graphs-of-linear-equations

**Calculating Slope given two coordinate points:**https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-linear-equations-functions/8th-slope/v/slope-of-a-line-2

**Calculating Slope from a graphed line:**https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-linear-equations-functions/8th-slope/v/slope-of-a-line

**Zero Slope (horizontal line):**https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-linear-equations-functions/8th-slope/v/slope-of-a-line-3

**Zero & Undefined Slope:**https://www.youtube.com/watch?v=uRe3JNrx7YE

**Using the y-intercept (slope-intercept form):**https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-linear-equations-functions/8th-slope-intercept-form/v/graphing-a-line-in-slope-intercept-form

**Write an equation in slope-intercept form:**https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-linear-equations-functions/8th-slope-intercept-form/v/equation-of-a-line-1

**Solve real-world type problems (linear):**https://www.khanacademy.org/math/algebra-basics/core-algebra-linear-equations-inequalities/core-algebra-linear-equation-word-problems/v/application-problems-with-equation-in-one-variable

OR: https://www.khanacademy.org/math/algebra-basics/core-algebra-linear-equations-inequalities/core-algebra-linear-equation-word-problems/v/linear-equation-word-problem-example

**What is a Function?:**https://www.khanacademy.org/math/algebra/algebra-functions/intro-to-functions/v/what-is-a-function

**Evaluating a Function Rule:**https://www.khanacademy.org/math/algebra/algebra-functions/evaluating-functions/v/understanding-function-notation-example-1

**Is the Graph a function (Vertical Line Test)?:**https://www.youtube.com/watch?v=96VqHrvZdXw

**Is the Table a Function:**https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-linear-equations-functions/cc-8th-function-intro/v/functional-relationships-1

**Relating Graphs to Events:**https://www.youtube.com/watch?v=HRMXXFYXAoM

**Linear vs. Non-linear:**https://www.youtube.com/watch?v=9To7GhdaCLY

**Writing a Linear Equation from a Table:**https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-linear-equations-functions/8th-slope-intercept-form/v/slope-intercept-form-from-table

**Unit 4 – Bivariate Data**

**Creating a Scatter Plot:**https://www.youtube.com/watch?v=NcgRa0uotXs

**Trends from a Scatter Plot:**https://www.youtube.com/watch?v=qc3vaCZxeRE

**Calculate Equation of Line of Best Fit:**https://www.youtube.com/watch?v=LPFrV-QhQE4

**Line of Best Fit with Graphing Calculator:**https://www.youtube.com/watch?v=wyEBNptWQZY

**Line of Best Fit Using Excel:**https://www.youtube.com/watch?v=_FOmUskHzPA

**Two-Way Tables:**https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-data/two-way-tables/v/two-way-frequency-tables-and-venn-diagrams

**Unit 5 – Linear Systems**

**Solve Systems by Graphing:**https://www.khanacademy.org/math/algebra-basics/core-algebra-systems/core-algebra-systems-tutorial/v/solving-linear-systems-by-graphing

**Solve Systems by Substitution (easy):**https://www.youtube.com/watch?v=QpAs7IbaHqQ

**Solve Systems by Substitution (harder):**https://www.khanacademy.org/math/algebra-basics/core-algebra-systems/core-algebra-systems-tutorial/v/solving-linear-systems-by-substitution

**Solving Systems by Elimination (easy):**https://www.youtube.com/watch?v=JNSYI3f5ktc

**Solving Systems by Elimination (multiply one equation):**https://www.youtube.com/watch?v=lIuFs8Dougw

**Solving Systems by Elimination (multiply both equations):**https://youtu.be/K9IG-aCHCSE?t=3m50s

**Problem Solving with Systems:**https://www.khanacademy.org/math/algebra/systems-of-linear-equations/systems-of-linear-equations-word-problems/v/using-a-system-of-equations-to-find-the-price-of-apples-and-oranges

OR https://www.khanacademy.org/math/algebra/systems-of-linear-equations/systems-of-linear-equations-word-problems/v/substitution-method-3

OR https://www.khanacademy.org/math/algebra/systems-of-linear-equations/systems-of-linear-equations-word-problems/v/understanding-systems-of-equations-example

**Unit 6 – Transformational Geometry**

**Transformations Introduction:**https://www.khanacademy.org/math/geometry/transformations/rigid-transformations-intro/v/introduction-to-transformations

**Translations:**https://www.khanacademy.org/math/geometry/transformations/rigid-transformations-intro/v/translation-example

**Writing a Translation Rule:**https://www.youtube.com/watch?v=XNzHILF_WBQ

**Reflections:**https://www.youtube.com/watch?v=j1X_UIOvEwA

**Reflectional Symmetry:**https://www.youtube.com/watch?v=8wqx5FOsSKg

**Rotations (90o Example):**https://www.youtube.com/watch?v=HIQhnCiDFaM

**Rotations (180o Example):**https://www.youtube.com/watch?v=E_vvfHYg31o

**Finding Scale Factor for Dilation:**https://www.youtube.com/watch?v=DhZ_Z69zaeE

**Dilation Construction:**https://www.youtube.com/watch?v=U3K5DGn-YzM

**Unit 7 – Shapes of Numbers**

**Parallel Lines cut by a Transversal Vocabulary:**https://www.youtube.com/watch?v=2ztZlUwkaqo

**Relationships between angle pairs – Numbers:**https://www.khanacademy.org/math/basic-geo/basic-geo-angles/basic-geo-angle-relationships/v/figuring-out-angles-between-transversal-and-parallel-lines

**Relationships between angle pairs – Algebra:**https://youtu.be/AztmdWk_BF4?t=4m56s

**Triangle Angle Sum Thm. (sum=180):**https://www.khanacademy.org/math/basic-geo/basic-geo-shapes/basic-geo-finding-angles/v/triangle-angle-example-1

**Exterior Angle of Triangle = Two Remote Interior Angles:**https://www.youtube.com/watch?v=w_KfARrpaWU

Pythagorean Theorem Basics: https://www.khanacademy.org/math/geometry/right-triangles-topic/pyth_theor/v/pythagorean-theorem

**Pythagorean Theorem Applications:**https://www.khanacademy.org/math/geometry/right-triangles-topic/pyth_theor/v/pythagorean-theorem-1

OR https://www.khanacademy.org/math/geometry/right-triangles-topic/pyth_theor/v/pythagorean-theorem-3

**Identify a Right Triangle (Pyth. Thm. Converse):**https://www.youtube.com/watch?v=cUlKXcorng8

**Distance Formula between Two points:**https://www.khanacademy.org/math/basic-geo/basic-geo-pythagorean-topic/basic-geo-pythagorean-theorem/v/distance-formula

**Volume of a Cylinder:**https://www.youtube.com/watch?v=KdQi3Q1teZU

**Volume of a Cone: (Visual)**https://www.youtube.com/watch?v=0ZACAU4SGyM

OR

**(Algebraic):**https://www.youtube.com/watch?v=aP769v8PrZY

**Find Radius of Cone given Volume and Height:**https://www.khanacademy.org/math/basic-geo/basic-geo-volume-surface-area/basic-geo-volumes/v/volume-cone-example

**Volume of a Sphere:**https://www.khanacademy.org/math/basic-geo/basic-geo-volume-surface-area/basic-geo-volumes/v/volume-of-a-sphere