Grades 9 and 10

Algebra 1

Measurement

Videos

Exponent

Graphing Lines on the Coordinate Plane

Solving Literal Equations

Compound Inequalities

Graphing Linear Inequalities in Two Variables

Multiplying Binomials

Polynomials

Factoring Techniques for Trinomials and Polynomials

Factor Simple Trinomials for a = 1

Factor Standard Trinomials for a > 1

Factoring Tutorial

Monomial Greatest Common Factor
Factor polynomials using the GCF
Factor expressions by grouping
Factoring trinomials with a leading 1 coefficient
Factoring trinomials with a common factor
Factoring trinomials with a non-1 leading coefficient by grouping
Factoring perfect square trinomials
Factoring difference of squares
Factoring Sum of Cubes
Factoring the Difference of Cubes
Solving factored equations
Solving quadratics by factoring
Applications Problem Factoring Quadratics

Multiplication Array, Algebra Tiles, Area Model
Area Model for Monomial and Binomial Multiplication
Using Area Model to illustrate Factoring
Using Area Model to Factor Trinomials
Area Model to Factor Difference of Squares

Solving Systems of Equations

Algebra Word Problems

Variation

Videos

Rational Expressions Videos

Introduction to Rational Expressions I
Introduction to Rational Expressions II

When is a Rational Expression Undefined or Zero?

Simplifying Rational Expressions I
Simplifying Rational Expressions II
Simplifying Rational Expressions III
Simplifying Rational Expressions IV

Adding Rational Expressions I
Adding Rational Expressions II

Subtracting Rational Expressions I
Subtracting Rational Expressions II

Adding and Subtracting Rational Expressions

Multiplying Rational Expressions I
Multiplying Rational Expressions II
Multiplying Rational Expressions III

Dividing Rational Expressions I
Dividing Rational Expressions II

Multiplying and Dividing Rational Expressions I
Multiplying and Dividing Rational Expressions II

Solving Rational Equations Videos

Solving Rational Equations I
Solving Rational Equations II
Solving Rational Equations III
Solving Rational Equations IV

Graphs and Functions Videos

Plotting Points on a Graph

Graphs of Exponential Functions

Relations and Functions I
Relations and Functions II
Relations and Functions III
Relations and Functions IV

Function Notation I
Function Notation II

Domain and Range of a Function I
Domain and Range of a Function II
Domain and Range of a Function III

Algebra Worksheets

Solving Equations Worksheets

Solving One-Step Equations - dynamically generated
Solving Two-Step Equations
Solving Equations by Combining Like Terms
Solving Equations with the Variable on Both Sides
Solving Equations by Distributive Property
Solving Multi-Step Equations

Factoring Trinomials or Quadratic Equations

Factoring Binomials by Difference of Squares
Factoring Perfect Square Trinomials
Factoring Trinomials or Quadratic Equations - dynamically generated
Factoring Different Types of Trinomials (I)
Factoring Different Types of Trinomials (II)

Solve Trinomials using Quadratic Formula

Finding Discriminants of Quadratic Polynomials - dynamically generated

Solving System of Equations by Substitution
Solving System of Equations by Addition
Solving System of Equations by Subtraction
Solving System of Equations by Addition or Subtraction
Solving System of Equations by Multiplication and then Addition or Subtraction

Algebra Games and Activities

Algebra Games and Activities

Geometry

Review Distance Formula
Midpoint Formula I
Midpoint Formula II

Circle Videos

Equation of Circle I
Equation of Circle II
Equation of Circle III

Chords and Secants

Tangents and Circles

Central Angles and Arcs I
Central Angles and Arcs II

Inscribed Angles I
Inscribed Angles II

Angles in Semi-Circles and Cyclic Quadrilaterals

Construction Videos

Constructing an Altitude of a Triangle
Constructing a Median of a Triangle
Constructing the Mid-segment of a Triangle

Points of Concurrency - Incenter, Orthocenter, Circumcenter, Centroid

Constructing the Centroid of a Triangle
Constructing the Orthocenter of a Triangle
Constructing the Circumcenter of a Triangle
Constructing the Incenter of a Triangle

Inscribed and Circumscribed Circles

Triangle Theorems and Proofs Videos

Angle Sum of a Triangle
Isosceles Triangle Theorem
Triangle Inequality Theorem
Exterior Angle Theorem

Triangle Congruence - SSS and SAS
Triangle Congruence - AAS and ASA
Triangle Congruence - HL (Hypotenuse Leg)

Why SSA and AAA are not Congruence Shortcuts?

Proving Triangles are Similar I
Proving Triangles are Similar II

Two Column Proofs I
Two Column Proofs II

CPCTC - corresponding parts of congruent triangles are congruent
CPCTC II

Geometry Proof: CPCTC, Two-Column Proofs, FlowChart Proofs, Proof by Contradiction

Congruent Figures

Angle Bisector Theorem
Side Splitter Theorem

Vertical Angle Theorem, Congruent Supplements Theorem, Congruent Complements Theorem, All Right Angles are Congruent Theorem

Properties of Polygons Videos

Interior Angles of Polygons I
Interior Angles of Polygons II

Exterior Angles of Polygons
Interior and Exterior Angles of Polygons

Properties of Parallelograms
Properties of Rectangles and Squares
Properties of Rhombus

Properties of Trapezoids
Area of Trapezoid Word Problems
Median and Mid-segment of a Trapezoid

Properties of Kites

Transformation Videos

Geometry Transformation - Translation I
Geometry Transformation - Translation II
Geometry Transformation - Reflection
Geometry Transformation - Rotation
Geometry Transformation - Dilation

Identifying Transformations
Composition of Transformation

Line Symmetry or Reflectional Symmetry
Rotational Symmetry I
Rotational Symmetry II

Area Videos

Areas of Kites and Rhombuses

Area of Regular Polygons I
Area of Regular Polygons II

Area of Sectors
Areas of Segments and Annulus
Areas between Circles and Squares

Surface Area of Combined Solids

Basic Trigonometry

Finding Sine of an Angle
Finding Cosine of an Angle
Finding Tangent of an Angle

Using the Trigonometry Formula - SOH-CAH-TOA I
Using the Trigonometry Formula - SOH-CAH-TOA II

Trigonometric Ratios: Sine, Cosine, Tangent
Trigonometric Functions: Sine, Cosine, Tangent
Trigonometric Functions: Sin, Cos, Tan, Sec, Csc, Cot

Finding Length of Side using Trigonometry I
Finding Length of Side using Trigonometry II
Find Unknown Sides of Right Angles
Find Height of Object using Trigonometry

Finding Angle Measure using Trigonometry

Inverse Trigonometry I
Inverse Trigonometry II

Solving Triangles using Trigonometry

Trigonometry Problems I
Trigonometry Problems II
Trigonometry Word Problems

Angles of Elevation and Depression I
Angles of Elevation and Depression II

Finding the Area of a Triangle using Sine

Law of Sines I
Law of Sines II
Law of Sines - Ambiguous Case

Law of Cosines I
Law of Cosines II

Proof of the Law of Sines and Cosines

Trigonometry Worksheets

Trigonometry - using calculator
Inverse Trigonometry - using calculator

Trigonometry - Find the unknown side
Trigonometry - Find the unknown angle

Using Sine - dynamically generated
Using Cosine - dynamically generated
Using Tangent - dynamically generated
Using Sine, Cosine or Tangent - dynamically generated

Trigonometry Applications & Problems

Law of Sines or Sine Rule
Law of Cosines or Cosine Rule

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