2:07
Special (Unit: For Most) Circle: Dynamic Construction WITHOUT WORDS or NUMBERS
Tim Brzezinski
1:12
Which Quadrant(s)? Trigonometry Quiz (with feedback)
0:55
Radian Definition: Dynamic & Conceptual Illustrator
2:27
Graphing Trigonometric Functions: Formative Assessment with Feedback
1:41
Evaluating Trigonometric Functions of Angles (Quiz Question Generator w/Feedback)
2:33
Which Quadrant? Trigonometry Logic Investigation
1:34
Modeling with Trigonometric Functions! (Formative Assessment w/Feedback)
2:15
Sine & Cosine of a Sum: Interactive Discovery, Investigation, & Proof
2:29
Sine and Cosine Functions: Basic Transformations
1:58
Ferris Wheel Action!
1:36
Trig ID's: 3 "Proofs" Without Words
2:11
Tangent of a Sum: Interactive PUZZLE & Proof!
2:24
Tangent of a Difference: Trig Identity PUZZLE & PROOF!
1:48
Cotangent of a Sum of 2 Angles (Puzzle Proof Exercise): Without Words!
1:26
Trigonometry: Bearing (Dynamic Illustrator)
2:30
Trigonometry & Bearings (2 Bearings): Dynamic & Modifiable Illustrator
1:37
Trigonometric Functions of Special Angles: (Quiz)
1:53
Adding Vectors Geometrically: Dynamic Illustration
Periods of 3 Parent Trigonometric Functions: Without Words
1:59
Polar Coordinates: Dynamic Illustrator
2:08
Projection of One Vector onto Another Vector
1:35
Writing Equivalent Polar Coordinates Quiz
1:18
Hyperbola: Reflective Property (Without Words)
2:21
Conic Sections!
1:09
Circle Equation Discovery: Center = (0,0)
Trig Ratio Estimations: Right Triangle Context
1:15
Degrees to Radians (and Vice Versa): Quick Formative Assessment w/GeoGebra
1:02
Angle Orientations (Standard Position)
0:58
Trigonometry: Quick Bearing Illustrator
0:42
Evaluating Trigonometric Functions of Angles Given a Point on its Terminal Ray
2:02
Ditch the Tricks: Estimating Trig Ratios: Conceptual Quiz Questions
0:38
3 Squares Problem: Trigonometric Identity (Proof Without Words)
0:56
Period of Parent Sine and Cosine Functions: Illustrations Without Words
0:41
Period of Parent Tangent Function: Illustration Without Words
SINE and COSINE of a SUM of 2 Angles: Discovery Activity Puzzle & Proof
2:23
Trigonometry and Bearings: Dynamic and Modifiable Illustrator
0:59
Ambiguous Case Explorer (ALL POSSIBLE CASES)
1:01
Graphing The Sinusoidal Function (Includes ALL Transformations)
1:21
Inverse Trig Functions: Intuitive Explorations
0:57
Identifying Trig Ratios within Right Triangles: Quick Formative Assessment Demo
1:16
Finding EXACT Trig Ratios: Quiz Question Generator (with Feedback)
2:14
Right Triangle Generator: Plot 2 Points and Enter Acute Angle
1:04
Using Inverse Trig Functions to Solve for Acute Angles Within Right Triangles
Trigonometric Functions of Special Angles: Dynamic GeoGebra Illustrator without Words or No's
1:06
Flying Fish! 3d Exploration in GeoGebra Augmented Reality
1:10
Trig Quadrant Logic (2): Quick Formative Assessment in GeoGebra
0:54
Dot Product: Basic Synthesis Questions
1:20
Graphing Circles Whose Equations Are Written in Standard Form
Double Angle Trig ID: Dynamic Illustration via Area
0:24
Period of Parent Sine & Cosine Functions: Quick Animation
1:57
Cotangent of a SUM of 2 ANGLES: Interactive Puzzle Discovery & Proof
Trigonometric Functions of Special Angles
0:23
Equation of a Circle (Center = (0,0)): Quick Dynamic Illustration
0:39
Creating Trig ID’s from Similar Right Triangles
0:53
Pythagorean Trig ID via Areas (2)
Open Middle Problem: Law of Cosines
0:40
Determining Vector Components: Pac Man Version
1:30
Radian Illustrator (GeoGebra)
0:50
Radian Illustrator (Desmos)
1:13
August 29, 2021
Double-Angle Trig Identity via Areas
2:05
Graphing Sine & Cosine Functions (Practice: All Transformations Included)
Open Middle: Basic Trig Graphing Challenge
1:24
Composing Trig & Inverse Trig Functions (2)
Composing Trig & Inverse Trig Functions (1)
Special Circle Coordinates
1:33
Trig Reference Circle (2): Choose Your Own Radius
Open Middle: Building Trig Equations
Open Middle: Creating Trig Equations (Demo)
Right Triangle Trig: Solving For Sides
1:42
Using Inverse Trig Functions to Express Angle Measures
0:37
Evaluating Inverse Trig Functions at Special Ratios
Law of Sines: Dynamic Area Illustrator
Ambiguous Case (SSA) Open Middle Execises
0:31
Creating Trig Equations: Open Middle Exercise
0:46
Trig and Bearings: Open Middle Exercise
Trigonometry and Bearings: Quick Setups
Crazy Changeable Regression Slide!
