Essential Question: How can you find the length of a side of a triangle or the measure of any angle?
Explanation:
Khan: Introduction to Radians
Khan: Radians & degrees
Khan: Degrees to radians
Khan: Radians to degrees
Website that animates the number of radians in a circle
website for conversion and exploring locations on a map by latitude and longitude
Explanation and extra examples from purplemath (at the bottom of the page)Â
Practice Problems:
Khan Exercise: Degrees to Radians
Explanation:
Khan article: Hypotenuse, opposite, and adjacent
Khan video: Intro to the trigonometric ratios
Khan article: Trigonometric ratios in right triangles
Khan article: Reciprocal trig ratiosÂ
Khan video: Finding reciprocal trig ratios
Khan article: Trigonometric ratios review
Khan video: Trigonometric ratios in right triangles
Khan video:Â Using reciprocal trig ratios
Practice Problems:
Khan Exercise: Trigonometric ratios in right triangles
Khan Exercise: Reciprocal Trig FunctionsÂ
Quizlet Flashcards: Trig Ratios
6.3 Using trig ratios in right triangles
Explanation:
Khan article: Solving for a side in right triangles with trigonometry
Khan video: Solving for a side in right triangles with trigonometry
Khan article: Intro to inverse trig functions
Practice Problems:
Khan exercise: Solve for a side in right triangles
Khan exercise: Solve for an angle in right triangles
6.4 Sine and cosine of complementary angles
Explanation:
Khan article: Sine & cosine of complementary angles
Khan video: Sine & cosine of complementary anglesÂ
Khan video: Using complementary anglesÂ
Practice Problems:
6.5 Indirect Measurements in a right triangle
Explanation:
Two unknown sides: Annotated
Khan video: Right triangle word problem
Khan article: Angles of elevation and depression
Khan article: Right triangle trigonometry review
Website - "10 most dangerous landing strips in the world"
Practice Problems:
Khan Exercise: Right triangle word problems
6.6 Law of SinesÂ
Explanation:
Khan video: Solving for a side with the law of sines
Khan video: Solving for an angle with the law of sines
Khan video: Proof of the law of sines
Practice Problems
Khan exercise: Solve triangles using the law of sines
6.7 Law of Cosines
Explanation:
Khan video: Solving for a side with the law of cosines
Khan video: Solving for an angle with the law of cosines
Khan video: Proof of the law of cosines
Practice Problems
6.8 Review using trig with triangles
Explanation
Khan video: Trig word problem: stars
Khan article: Laws of sines and cosines review
Practice Problems:
Khan Exercise: General triangle word problems
6.10 Vectors - component form given initial and terminal points, magnitude, scalar multiplication, addition
Explanation:
Vectors components act independently of each other:
Khan video: Intro to vectors and scalars
Khan video: Representing quantities with vectors
Khan video: Equivalent vectors
Khan video: Components of vectors
Khan video: Components of vectors (example 2)
Khan video: Vector magnitude from graph
Khan video: Vector magnitude from components
Khan video: Vector magnitude from initial & terminal points
Khan video: Scalar multiplication of vectors
Khan video: Adding & subtracting vectors
Khan video: Combined vector operations
Practice Problems:
Khan Exercise: Equivalent vectors
Khan Exercise: Components of vectors
Khan Exercise: Magnitude of vectors
Khan Exercise: Scalar multiplication
Khan Exercise: Add & subtract vectors
Khan Exercise: Combined vector operations
6.11 Vectors: format conversion
Explanation:
Khan video: Unit vectors intro
Khan video: Representing quantities with vectors
Khan video: Interpreting statements about vectors
Khan video: Introduction to vector components
Khan video: Finding the components of a vector (using the initial and terminal points)
Khan video: Vector magnitude from graph
Khan video: Vector magnitude from components
Khan video: Vector magnitude from initial & terminal points
Khan video: Scalar multiplication: component form
Khan video: Scalar multiplication: magnitude and direction
Khan video: Direction of vectors from components: 1st & 2nd quadrants
Khan video: Direction of vectors from components: 3rd & 4th quadrants
Khan article: Vector forms review
Khan video: Vector components from magnitude & direction
Khan article: Vector components from magnitude & direction (advanced)
Khan article: Vector magnitude and direction review
Khan video: Vectors word problem: pushing a box
Khan video: Vectors word problem: hiking
Practice Problems:
Khan exercise: Vectors intro
Khan exercise: Components of vectors from endpoints
Khan exercise: Scalar Multiplication
Khan exercise: Direction of vectors
Khan exercise: Vector components from magnitude & direction
Khan exercise: Add vectors: magnitude & direction to component
Khan exercise: Add vectors: magnitude & direction
Khan exercise: Vector word problems
6.12 Trig and Area
Explanation
Notes | Annotated
Practice Problems