- Curriculum Map Activities
- MAFS.912.G-GPE.1.1
- MAFS.912.G-GPE.2.4
- Parallelogram Creation Exercises (I)
- Parallelogram Creation Exercise (II)
- Parallelogram Creation Exercise (III)
- Parallelogram: Coordinate Geometry Setup
- Parallelogram Diagonals
- Isosceles Triangle Medians
- Rectangle Diagonals
- Isosceles Trapezoid Diagonals
- Isosceles Trapezoid Midpoints
- Rhombus Diagonals
- Inscribed Angle Intercepts Semicircle
- 3 Special Points!
- Finsler-Hadwiger Exercise (VA)
- Finsler-Hadwiger Exercise (VB)
- Slope to Angle Measure Calculator (I)
- Slope to Angle Measure Calculator (II)
- MAFS.912.G-GPE.2.5
- Rise & Run (Revamped)
- Rise & Run
- Slope: Intuitive Introduction
- Slope: Intuitive Introduction (II)
- Slope: Dynamic Illustration
- Parallel Consequence? (VA)
- Parallel Consequence? (VB)
- Parallel Lines in the Coordinate Plane (VA)
- Parallel Lines in the Coordinate Plane (VB)
- Coordinate Geometry: Quick Investigation
- Parallel and Perpendicular Lines in the Coordinate Plane
- Perpendicular Lines Investigation (VA)
- Perpendicular Lines Investigation (VB)
- Slope Triangle Rotation (VA)
- Animation 103
- Parallel & Perpendicular Consequence
- Parallel Lines Definition
- Perpendicular Lines Definition (& Consequence)
- Parallel & Perpendicular (Writing Equations of Lines)
- MAFS.912.G-GPE.2.6
- MAFS.912.G-GPE.2.7
- MAFS.912.G-C.1.1
- MAFS.912.G-C.1.2
- Circle Terminology
- Circle Tangent-Types Illustrator
- Properties of Tangents Drawn to Circles (A)
- Properties of Tangents (B)
- Animation 3
- Tangents to Circles: Investigation
- Where to Sit? (I)
- Where to Sit (II)?
- Inscribed Angle Theorem (V1)
- Animation 12
- Inscribed Angle Theorem: Take 2!
- Inscribed Angle Theorems: Take 3!
- Proof Exercise: Inscribed Angle Theorem (Case 1)
- Proof Exercise: Inscribed Angle Theorem (Case 2)
- Proof Exercise: Inscribed Angle Theorem (Case 3)
- Inscribed Angle Theorems: Take 4!
- Inscribed Angle Theorem: Corollary 1
- Animation 20 (Inscribed Angle Dance!)
- Thales' Theorem (VA)
- Animation 116
- Thales' Theorem (VB)
- Animation 54
- Angle Formed by Chord & Tangent (I)
- Animation 50
- Angle Formed by Chord & Tangent (II)
- Animation 78
- Congruent Chords: Quick Investigation
- Congruent Chords (I)
- Animation 76
- Diameters & Chords I (VA)
- Diameters & Chords I (VB)
- Animation 24
- Congruent Chords Action (A)
- Animation 96
- Equidistant Chord Action
- Animation 101
- Angle Formed by 2 Chords (I)
- Animation 32
- Angle Formed by 2 Chords (II)
- Animation 33
- Angles from Secants and Tangents (V1)
- Animation 61
- Angle From 2 Secants (V2)
- Animation 45
- Crossing Chords: Proof Hint
- Animation 79
- Crossing Chords Property & Proof Start
- Crossing Chords Property & Proof Start (II)
- Secants: Proof Hint
- Animation 88
- Animation 92
- MAFS.912.G-C.1.3
- MAFS.912.G-C.2.5
- MAFS.912.G-CO.1.1
- Congruent Segments Definition (I)
- Animation 18
- Proving Segments Congruent (Exercise)
- Congruent Angles: Definition
- Animation 36
- Proving Angles Congruent (1)
- Proving Angles Congruent (2)
- Proving Angles Congruent (3)
- Midpoint Definition (I)
- Animation 56
- Segment Bisector Definition
- Animation 160
- Perpendicular Lines - Quick Intro
- Segment Bisectors (Definitions)
- Perpendicular Bisector Definition
- Perpendicular Bisector Definition
- Animation 15
- Angle Bisector Definition (I)
- Complementary Angles
- Animation 48
- Supplementary Angles
- Animation 19
- Circle vs. Sphere
- Triangle Altitude Illustrator and Definition Writing Prompt
- Animation 162
- Triangle Median Illustrator & Definition Writing Prompt
- Animation 161
- Equilateral Action!!!
- Animation 165
- Equiangular Action!!!
- Animation 166
- Regular Polygon Action!
- Animation 193
- MAFS.912.G-CO.1.2, 1.3, 1.4, 1.5
- Translations and Rotations
- Translating Triangle by a Vector
- Reflections
- Reflections Introduction
- Flip Flop Reflection
- Tool for compositions of rigid transformations and dilations
- Applet for Multiple Transformations
- Messing With Lisa: Introduction to Transformations
- Rotations: Introduction
- Point Symmetry: Another Perspective
- Reflections and Translations
- Tessellation by Translation
- Parallel Translation
- Transformations: Exercise 1
- Transformations: Exercise 2
- Transformations: Exercise 3
- MAFS.912.G-CO.2.6
- MAFS.912.G-CO.2.7
- MAFS.912.G-CO.2.8
- MAFS.912.G-CO.3.9
- Proof Prompt (A)
- Animation 128
- Proof Prompt (B)
- Animation 127
- Proof Prompt (C)
- Animation 131
- Proof Prompt (D)
- Animation 130
- Vertical Angles: Quick (Numberless) Investigation
- Vertical Angles: Quick Investigation
- Vertical Angles Theorem
- Animation 1
- Transversal Intersects Parallel Lines (Investigation)
- Corresponding Angles: Quick Investigation
- Congruent Corresponding Angles to Start? (Quick Investigation)
- Corresponding Angles Theorem (V2)
- Alternate Interior Angles: Quick Investigation
- Alternate Interior Angles Theorem (V1)
- Alternate Interior Angles Theorem (V2)
- Alternate Interior Angles Theorem (V3)
- Animation 16
- Alternate Exterior Angles: Quick Investigation
- Alternate Exterior Angles Theorem (V1)
- Alternate Exterior Angles Theorem (V2)
- Animation 39
- Animation 60
- Same-Side-Interior Angles: Quick Investigation
- Same Side Interior Angles Theorem
- Animation 29
- Same-Side-Exterior Angles: Quick Investigation
- Same Side Exterior Angles Theorem
- Animation 73
- Solution to Parallel Lines & Angles Problem
- Interesting Coplanar Locations (1)
- A Special Theorem: Part 1 (V1)
- A Special Theorem: Part 2 (V1)
- A Special Theorem: Part 2 (V2)
- A Special Theorem: Part 2 (V3)
- Animation 57
- A Special Theorem: Part 2 (V4)
- PBT (Part 1) - Quick
- PBT (Part 2) - Quick
- Where in This City? (1)
- CT Home Depots
- Where in NYC? (VA)
- Where in NYC? (VB)
- Where in NYC? (VC)
- Angle Bisector Theorem (Part 1)
- Another Special Theorem: Part 1 (V1)
- Another Special Theorem: Part 2 (V1)
- Another Special Theorem: Part 1 (V2)
- Animation 58
- Another Special Theorem: Part 1 (V3)
- Effortless Trisections
- Animation 134
- Parallel Lines Congruent Segments Theorem
- Parallel Lines Proportionality Theorem
- Animation 135
- MAFS.912.G-CO.3.10
- Triangle Area Action!!! (V1)
- Triangle Area Action!!! (V2)
- Animation 175
- Area of a Triangle (Discovery)
- 4 Triangles Action!!!
- Animation 179
- Triangle Angle Theorems (V1)
- Animation 171
- Triangle Angle Theorems (V2)
- Animation 2
- Triangle Angle Theorems (V3)
- Transformation Proof 3
- Triangle Angle Sum Theorem
- Obvious Corollary
- Animation 140
- Triangle Exterior Angle
- Animation 102
- Triangle: Exterior Angles
- Quadrilateral: Exterior Angles
- Pentagon: Exterior Angles
- Polygons: Exterior Angles
- Polygons: Exterior Angles - REVAMPED
- Polygon Angle Theorems: Triangle through Octagon
- Angles of a Right Triangle
- Animation 104
- Acute Angles of a Right Triangle
- Animation 129
- Animation 22
- Isosceles Triangle Theorem: Discovery Lab
- A Special Triangle & Its Properties (I)
- Animation 8
- Isosceles Triangle Investigation
- Converse of IST (V1)
- Animation 82
- Animation 23
- Another Special Triangle and its Properties (II)
- Animation 27
- Converse of IST (II)
- Animation 84
- Isosceles Right Triangle: Quick Investigation
- Special Right Triangle (I)
- Animation 59
- Special Right Triangle (II)
- Another Special Right Triangle (Guided Discovery)
- Animation 42
- Special Line through Triangle V1 (Theorem Discovery)
- Special Line through Triangle V2 (Theorem Discovery)
- Triangle Midsegment Action!
- Animation 141
- Midsegment of a Triangle
- Triangle Side Possibilities? (V1)
- Triangle Side Possibilities? (V2)
- Triangle Inequality
- Triangle Inequality (II)
- Inequalities in 1 Triangle
- Points of Concurrency: Investigation
- Orthocenter (& Questions)
- Circumcenter (& Questions)
- Circumcenter & Circumcircle Action!
- Animation 28
- Midpoint of HYP
- Animation 46
- Incenter Exploration (A)
- Incenter Exploration (B)
- Incenter & Incircle Action!
- Animation 17
- Triangle Medians: Quick Investigation
- Medians Centroid Theorem (Proof without Words)
- Medians and Centroid Dance
- Animation 25
- MAFS.912.G-CO.3.11
- Parallelogram: Area
- Animation 202
- Parallelograms: Discovery Labs
- Parallelogram Template (Scaffolded Discovery)
- Parallelogram Template
- Parallelogram: Theorem 1
- Animation 123
- Parallelogram: Theorem 2
- Animation 124
- Parallelogram: Theorem (3)
- Animation 125
- Parallelograms (I)
- Animation 75
- Animation 80
- Animation 6
- What Kind of Quadrilateral is This? (Part 1)
- What Kind of Quadrilateral is This? (Part 2)
- What Kind of Quadrilateral is This? (Part 3)
- What Kind of Quadrilateral is This? (Part 4)
- Special Quadrilateral: Theorem 1
- Animation 184
- Special Quadrilateral: Theorem 2
- Animation 185
- Special Quadrilateral: Theorem 3
- Animation 186
- Special Quadrilateral: Theorem 4
- Animation 187
- Congruent Opposite Sides of a Quadrilateral
- Quadrilateral With Opposite Angles Congruent
- What Kind of Quad?
- Quadrilateral Investigation (I)
- Rhombus Action!
- Animation 11
- Rhombus Template (Scaffolded Discovery)
- Rhombus Template with Investigation Questions
- Rectangle Action!
- Animation 31
- Rectangle Template (Scaffolded Investigation)
- Rectangle Template with Investigation Questions
- Square Action!
- Animation 41
- Square Template (Scaffolded Investigation)
- Square Template with Investigation Questions
- Trapezoids: Median Investiagtion
- Trapezoid Median (Midsegment) Action!
- Animation 67
- Trapezoid Median: 2 Discoveries
- Isosceles Trapezoid Action!
- Animation 64
- Animation 35
- Isosceles Trapezoid Template (Scaffolded Discovery)
- Isosceles Trapezoid Template
- Animation 49
- Kite Action!
- Animation 26
- Kite Template: Scaffolded Investigation
- Kite Template with Investigation Questions
- Quad Midpoints Action!
- Animation 52
- MAFS.912.G-GMD.1.1
- Measuring the circumference in terms of the diameter.
- TRUE MEANING of π
- Circumference = ? (Animation)
- Animation 66
- Circumference = ? (Animation II)
- Animation 70
- Animation 65
- Parallelogram: Area
- Animation 202
- Triangle Area Action!!! (V1)
- Triangle Area Action!!! (V2)
- Animation 175
- Circle Area (by Peeling)
- Circle Area (By Peeling!)
- Area of a Circle - without words (Animation 38)
- Area of a Circle (III)
- Area of a Circle (by Peeling)
- Area of a Circle II
- Volume of a Rectangular Prism
- Figure 6.7 Cavalieri's principle
- Cavalieri's Principle
- Mailbox? Backpack? (Composite Solid)
- Washer Action!!! (1)
- Animation 169
- Trisecting the Cube into 3 Pyramids
- Volume of Pyramids
- Volume of Pyramids - Chinese Proof
- SolveMyMaths Action 3A!
- SolveMyMaths Action 3B!
- Animation 203
- SolveMyMaths Action 4!
- Animation 204
- 4 Triangles Action!!!
- Animation 179
- MAFS.912.G-GMD.1.3
- Unwrapping a Cylinder
- Unwrapping a Cylinder: REVAMPED!
- Volume of Spheres
- Volume of Spheres with Proof
- A sphere in a cylinder.
- Surface Area of Spheres
- Volumes and Surface Areas of Similar Cuboids
- Square Pyramid: Underlying Anatomy
- oblique and right pyramid - Cavalieri
- Right Triangular Prism!
- Adjustable Triangular Prism
- Sphere Peeling: Volume
- Net of a Cone
- Curved Surface Area of Cones (Combined Version)
- MAFS.912.G-GMD.2.4
- Sections of Rectangular Prisms (Cuboids)
- Sections of Triangular Prisms
- Sections of Cylinders
- Sections of Rectangular Pyramids
- Sections of Triangular Pyramids
- Sections of Cones
- Sections of Spheres
- Exploring Sections of Cubes
- 11 Nets of the Cube
- Cube Geometry: Shortest Path Between Points - A Net
- Cube Dissection Problem
- Rotating a Triangle Around a Coordinate Axis
- Box with Open Top
- Cross Section? (1)
- MAFS.912.G-MG.1.1, 1.2, 1.3
- MAFS.912.G-SRT.1.1
- MAFS.912.G-SRT.1.2
- MAFS.912.G-SRT.1.3
- MAFS.912.G-SRT.2.4, 2.5
- SAS ~ Theorem
- SSS ~ Theorem (V1)
- Animation 63
- SSS ~ Theorem (V2)
- SSSS: Similar Quads?
- Similar Right Triangles (V1)
- Animation 13
- Pythagorean and similar triangles.
- Effortless Trisections
- Animation 134
- Parallel Lines Congruent Segments Theorem
- Parallel Lines Proportionality Theorem
- Triangle-Angle Bisector Theorem
- Animation 81
- Proof Without Words
- Wordless Pythagorean Theorem based on Translations
- Proof Without Words
- Proof Without Words
- Proof Without Words
- Proof Without Words
- Proof Without Words
- Proof Without Words
- Proof Without Words
- Proof Without Words
- Proof Without Words
- MAFS.912.G-SRT.3.6, 3.7, 3.8
- Quiz: Pythagorean Theorem (1)
- Quiz: Pythagorean Theorem (2B)
- Angles in Standard Position
- Animation 176
- Quiz: Evaluating Trigonometric Functions of Angles Given a Point on its Terminal Ray
- Evaluating Trigonometric Functions of an Angle Given a Point on its Terminal Ray
- Trig Ratio Possibilities?
- Quiz: Right Triangle Trig (Solving for Sides)
- Quiz: Special Right Triangles
- Special Angles in Standard Position: Intro (V2)
- Special Angles in Standard Position: Intro (V3)
- Special Angles in Standard Position: Intro (V1)
- Animation 177
- Animation 178
- Right Triangle Trigonometry: Intro
- Conceptual Illustrations: Trigonometric Ratios within Right Triangles
- Trig Ratio Estimations (Quiz: V1)
- Trig Ratio Estimations (Quiz: V2)
- Trigonometric Ratios (Right Triangle Context)
- Discovering Sine, Cosine, and Tangent in Right Triangles
- What "CO" in COsine Means
- Quiz: Expressing Angles Using Inverse Trigonometric Function
- Animation 98
- Animation 99
- Animation 100
- YOUR Linear Speed?
- How Fast are You Spinning?
Curriculum Map Activities
- Author:
- JohnCMorris
Geometry MAFS Activities
Table of Contents
MAFS.912.G-GPE.1.1
MAFS.912.G-GPE.2.4
- Parallelogram Creation Exercises (I)
- Parallelogram Creation Exercise (II)
- Parallelogram Creation Exercise (III)
- Parallelogram: Coordinate Geometry Setup
- Parallelogram Diagonals
- Isosceles Triangle Medians
- Rectangle Diagonals
- Isosceles Trapezoid Diagonals
- Isosceles Trapezoid Midpoints
- Rhombus Diagonals
- Inscribed Angle Intercepts Semicircle
- 3 Special Points!
- Finsler-Hadwiger Exercise (VA)
- Finsler-Hadwiger Exercise (VB)
- Slope to Angle Measure Calculator (I)
- Slope to Angle Measure Calculator (II)
MAFS.912.G-GPE.2.5
- Rise & Run (Revamped)
- Rise & Run
- Slope: Intuitive Introduction
- Slope: Intuitive Introduction (II)
- Slope: Dynamic Illustration
- Parallel Consequence? (VA)
- Parallel Consequence? (VB)
- Parallel Lines in the Coordinate Plane (VA)
- Parallel Lines in the Coordinate Plane (VB)
- Coordinate Geometry: Quick Investigation
- Parallel and Perpendicular Lines in the Coordinate Plane
- Perpendicular Lines Investigation (VA)
- Perpendicular Lines Investigation (VB)
- Slope Triangle Rotation (VA)
- Animation 103
- Parallel & Perpendicular Consequence
- Parallel Lines Definition
- Perpendicular Lines Definition (& Consequence)
- Parallel & Perpendicular (Writing Equations of Lines)
MAFS.912.G-GPE.2.6
MAFS.912.G-GPE.2.7
MAFS.912.G-C.1.1
MAFS.912.G-C.1.2
- Circle Terminology
- Circle Tangent-Types Illustrator
- Properties of Tangents Drawn to Circles (A)
- Properties of Tangents (B)
- Animation 3
- Tangents to Circles: Investigation
- Where to Sit? (I)
- Where to Sit (II)?
- Inscribed Angle Theorem (V1)
- Animation 12
- Inscribed Angle Theorem: Take 2!
- Inscribed Angle Theorems: Take 3!
- Proof Exercise: Inscribed Angle Theorem (Case 1)
- Proof Exercise: Inscribed Angle Theorem (Case 2)
- Proof Exercise: Inscribed Angle Theorem (Case 3)
- Inscribed Angle Theorems: Take 4!
- Inscribed Angle Theorem: Corollary 1
- Animation 20 (Inscribed Angle Dance!)
- Thales' Theorem (VA)
- Animation 116
- Thales' Theorem (VB)
- Animation 54
- Angle Formed by Chord & Tangent (I)
- Animation 50
- Angle Formed by Chord & Tangent (II)
- Animation 78
- Congruent Chords: Quick Investigation
- Congruent Chords (I)
- Animation 76
- Diameters & Chords I (VA)
- Diameters & Chords I (VB)
- Animation 24
- Congruent Chords Action (A)
- Animation 96
- Equidistant Chord Action
- Animation 101
- Angle Formed by 2 Chords (I)
- Animation 32
- Angle Formed by 2 Chords (II)
- Animation 33
- Angles from Secants and Tangents (V1)
- Animation 61
- Angle From 2 Secants (V2)
- Animation 45
- Crossing Chords: Proof Hint
- Animation 79
- Crossing Chords Property & Proof Start
- Crossing Chords Property & Proof Start (II)
- Secants: Proof Hint
- Animation 88
- Animation 92
MAFS.912.G-C.1.3
MAFS.912.G-C.2.5
MAFS.912.G-CO.1.1
- Congruent Segments Definition (I)
- Animation 18
- Proving Segments Congruent (Exercise)
- Congruent Angles: Definition
- Animation 36
- Proving Angles Congruent (1)
- Proving Angles Congruent (2)
- Proving Angles Congruent (3)
- Midpoint Definition (I)
- Animation 56
- Segment Bisector Definition
- Animation 160
- Perpendicular Lines - Quick Intro
- Segment Bisectors (Definitions)
- Perpendicular Bisector Definition
- Perpendicular Bisector Definition
- Animation 15
- Angle Bisector Definition (I)
- Complementary Angles
- Animation 48
- Supplementary Angles
- Animation 19
- Circle vs. Sphere
- Triangle Altitude Illustrator and Definition Writing Prompt
- Animation 162
- Triangle Median Illustrator & Definition Writing Prompt
- Animation 161
- Equilateral Action!!!
- Animation 165
- Equiangular Action!!!
- Animation 166
- Regular Polygon Action!
- Animation 193
MAFS.912.G-CO.1.2, 1.3, 1.4, 1.5
- Translations and Rotations
- Translating Triangle by a Vector
- Reflections
- Reflections Introduction
- Flip Flop Reflection
- Tool for compositions of rigid transformations and dilations
- Applet for Multiple Transformations
- Messing With Lisa: Introduction to Transformations
- Rotations: Introduction
- Point Symmetry: Another Perspective
- Reflections and Translations
- Tessellation by Translation
- Parallel Translation
- Transformations: Exercise 1
- Transformations: Exercise 2
- Transformations: Exercise 3
MAFS.912.G-CO.2.6
MAFS.912.G-CO.2.7
MAFS.912.G-CO.2.8
MAFS.912.G-CO.3.9
- Proof Prompt (A)
- Animation 128
- Proof Prompt (B)
- Animation 127
- Proof Prompt (C)
- Animation 131
- Proof Prompt (D)
- Animation 130
- Vertical Angles: Quick (Numberless) Investigation
- Vertical Angles: Quick Investigation
- Vertical Angles Theorem
- Animation 1
- Transversal Intersects Parallel Lines (Investigation)
- Corresponding Angles: Quick Investigation
- Congruent Corresponding Angles to Start? (Quick Investigation)
- Corresponding Angles Theorem (V2)
- Alternate Interior Angles: Quick Investigation
- Alternate Interior Angles Theorem (V1)
- Alternate Interior Angles Theorem (V2)
- Alternate Interior Angles Theorem (V3)
- Animation 16
- Alternate Exterior Angles: Quick Investigation
- Alternate Exterior Angles Theorem (V1)
- Alternate Exterior Angles Theorem (V2)
- Animation 39
- Animation 60
- Same-Side-Interior Angles: Quick Investigation
- Same Side Interior Angles Theorem
- Animation 29
- Same-Side-Exterior Angles: Quick Investigation
- Same Side Exterior Angles Theorem
- Animation 73
- Solution to Parallel Lines & Angles Problem
- Interesting Coplanar Locations (1)
- A Special Theorem: Part 1 (V1)
- A Special Theorem: Part 2 (V1)
- A Special Theorem: Part 2 (V2)
- A Special Theorem: Part 2 (V3)
- Animation 57
- A Special Theorem: Part 2 (V4)
- PBT (Part 1) - Quick
- PBT (Part 2) - Quick
- Where in This City? (1)
- CT Home Depots
- Where in NYC? (VA)
- Where in NYC? (VB)
- Where in NYC? (VC)
- Angle Bisector Theorem (Part 1)
- Another Special Theorem: Part 1 (V1)
- Another Special Theorem: Part 2 (V1)
- Another Special Theorem: Part 1 (V2)
- Animation 58
- Another Special Theorem: Part 1 (V3)
- Effortless Trisections
- Animation 134
- Parallel Lines Congruent Segments Theorem
- Parallel Lines Proportionality Theorem
- Animation 135
MAFS.912.G-CO.3.10
- Triangle Area Action!!! (V1)
- Triangle Area Action!!! (V2)
- Animation 175
- Area of a Triangle (Discovery)
- 4 Triangles Action!!!
- Animation 179
- Triangle Angle Theorems (V1)
- Animation 171
- Triangle Angle Theorems (V2)
- Animation 2
- Triangle Angle Theorems (V3)
- Transformation Proof 3
- Triangle Angle Sum Theorem
- Obvious Corollary
- Animation 140
- Triangle Exterior Angle
- Animation 102
- Triangle: Exterior Angles
- Quadrilateral: Exterior Angles
- Pentagon: Exterior Angles
- Polygons: Exterior Angles
- Polygons: Exterior Angles - REVAMPED
- Polygon Angle Theorems: Triangle through Octagon
- Angles of a Right Triangle
- Animation 104
- Acute Angles of a Right Triangle
- Animation 129
- Animation 22
- Isosceles Triangle Theorem: Discovery Lab
- A Special Triangle & Its Properties (I)
- Animation 8
- Isosceles Triangle Investigation
- Converse of IST (V1)
- Animation 82
- Animation 23
- Another Special Triangle and its Properties (II)
- Animation 27
- Converse of IST (II)
- Animation 84
- Isosceles Right Triangle: Quick Investigation
- Special Right Triangle (I)
- Animation 59
- Special Right Triangle (II)
- Another Special Right Triangle (Guided Discovery)
- Animation 42
- Special Line through Triangle V1 (Theorem Discovery)
- Special Line through Triangle V2 (Theorem Discovery)
- Triangle Midsegment Action!
- Animation 141
- Midsegment of a Triangle
- Triangle Side Possibilities? (V1)
- Triangle Side Possibilities? (V2)
- Triangle Inequality
- Triangle Inequality (II)
- Inequalities in 1 Triangle
- Points of Concurrency: Investigation
- Orthocenter (& Questions)
- Circumcenter (& Questions)
- Circumcenter & Circumcircle Action!
- Animation 28
- Midpoint of HYP
- Animation 46
- Incenter Exploration (A)
- Incenter Exploration (B)
- Incenter & Incircle Action!
- Animation 17
- Triangle Medians: Quick Investigation
- Medians Centroid Theorem (Proof without Words)
- Medians and Centroid Dance
- Animation 25
MAFS.912.G-CO.3.11
- Parallelogram: Area
- Animation 202
- Parallelograms: Discovery Labs
- Parallelogram Template (Scaffolded Discovery)
- Parallelogram Template
- Parallelogram: Theorem 1
- Animation 123
- Parallelogram: Theorem 2
- Animation 124
- Parallelogram: Theorem (3)
- Animation 125
- Parallelograms (I)
- Animation 75
- Animation 80
- Animation 6
- What Kind of Quadrilateral is This? (Part 1)
- What Kind of Quadrilateral is This? (Part 2)
- What Kind of Quadrilateral is This? (Part 3)
- What Kind of Quadrilateral is This? (Part 4)
- Special Quadrilateral: Theorem 1
- Animation 184
- Special Quadrilateral: Theorem 2
- Animation 185
- Special Quadrilateral: Theorem 3
- Animation 186
- Special Quadrilateral: Theorem 4
- Animation 187
- Congruent Opposite Sides of a Quadrilateral
- Quadrilateral With Opposite Angles Congruent
- What Kind of Quad?
- Quadrilateral Investigation (I)
- Rhombus Action!
- Animation 11
- Rhombus Template (Scaffolded Discovery)
- Rhombus Template with Investigation Questions
- Rectangle Action!
- Animation 31
- Rectangle Template (Scaffolded Investigation)
- Rectangle Template with Investigation Questions
- Square Action!
- Animation 41
- Square Template (Scaffolded Investigation)
- Square Template with Investigation Questions
- Trapezoids: Median Investiagtion
- Trapezoid Median (Midsegment) Action!
- Animation 67
- Trapezoid Median: 2 Discoveries
- Isosceles Trapezoid Action!
- Animation 64
- Animation 35
- Isosceles Trapezoid Template (Scaffolded Discovery)
- Isosceles Trapezoid Template
- Animation 49
- Kite Action!
- Animation 26
- Kite Template: Scaffolded Investigation
- Kite Template with Investigation Questions
- Quad Midpoints Action!
- Animation 52
MAFS.912.G-GMD.1.1
- Measuring the circumference in terms of the diameter.
- TRUE MEANING of π
- Circumference = ? (Animation)
- Animation 66
- Circumference = ? (Animation II)
- Animation 70
- Animation 65
- Parallelogram: Area
- Animation 202
- Triangle Area Action!!! (V1)
- Triangle Area Action!!! (V2)
- Animation 175
- Circle Area (by Peeling)
- Circle Area (By Peeling!)
- Area of a Circle - without words (Animation 38)
- Area of a Circle (III)
- Area of a Circle (by Peeling)
- Area of a Circle II
- Volume of a Rectangular Prism
- Figure 6.7 Cavalieri's principle
- Cavalieri's Principle
- Mailbox? Backpack? (Composite Solid)
- Washer Action!!! (1)
- Animation 169
- Trisecting the Cube into 3 Pyramids
- Volume of Pyramids
- Volume of Pyramids - Chinese Proof
- SolveMyMaths Action 3A!
- SolveMyMaths Action 3B!
- Animation 203
- SolveMyMaths Action 4!
- Animation 204
- 4 Triangles Action!!!
- Animation 179
MAFS.912.G-GMD.1.3
- Unwrapping a Cylinder
- Unwrapping a Cylinder: REVAMPED!
- Volume of Spheres
- Volume of Spheres with Proof
- A sphere in a cylinder.
- Surface Area of Spheres
- Volumes and Surface Areas of Similar Cuboids
- Square Pyramid: Underlying Anatomy
- oblique and right pyramid - Cavalieri
- Right Triangular Prism!
- Adjustable Triangular Prism
- Sphere Peeling: Volume
- Net of a Cone
- Curved Surface Area of Cones (Combined Version)
MAFS.912.G-GMD.2.4
- Sections of Rectangular Prisms (Cuboids)
- Sections of Triangular Prisms
- Sections of Cylinders
- Sections of Rectangular Pyramids
- Sections of Triangular Pyramids
- Sections of Cones
- Sections of Spheres
- Exploring Sections of Cubes
- 11 Nets of the Cube
- Cube Geometry: Shortest Path Between Points - A Net
- Cube Dissection Problem
- Rotating a Triangle Around a Coordinate Axis
- Box with Open Top
- Cross Section? (1)
MAFS.912.G-MG.1.1, 1.2, 1.3
MAFS.912.G-SRT.1.1
MAFS.912.G-SRT.1.2
MAFS.912.G-SRT.1.3
MAFS.912.G-SRT.2.4, 2.5
- SAS ~ Theorem
- SSS ~ Theorem (V1)
- Animation 63
- SSS ~ Theorem (V2)
- SSSS: Similar Quads?
- Similar Right Triangles (V1)
- Animation 13
- Pythagorean and similar triangles.
- Effortless Trisections
- Animation 134
- Parallel Lines Congruent Segments Theorem
- Parallel Lines Proportionality Theorem
- Triangle-Angle Bisector Theorem
- Animation 81
- Proof Without Words
- Wordless Pythagorean Theorem based on Translations
- Proof Without Words
- Proof Without Words
- Proof Without Words
- Proof Without Words
- Proof Without Words
- Proof Without Words
- Proof Without Words
- Proof Without Words
- Proof Without Words
MAFS.912.G-SRT.3.6, 3.7, 3.8
- Quiz: Pythagorean Theorem (1)
- Quiz: Pythagorean Theorem (2B)
- Angles in Standard Position
- Animation 176
- Quiz: Evaluating Trigonometric Functions of Angles Given a Point on its Terminal Ray
- Evaluating Trigonometric Functions of an Angle Given a Point on its Terminal Ray
- Trig Ratio Possibilities?
- Quiz: Right Triangle Trig (Solving for Sides)
- Quiz: Special Right Triangles
- Special Angles in Standard Position: Intro (V2)
- Special Angles in Standard Position: Intro (V3)
- Special Angles in Standard Position: Intro (V1)
- Animation 177
- Animation 178
- Right Triangle Trigonometry: Intro
- Conceptual Illustrations: Trigonometric Ratios within Right Triangles
- Trig Ratio Estimations (Quiz: V1)
- Trig Ratio Estimations (Quiz: V2)
- Trigonometric Ratios (Right Triangle Context)
- Discovering Sine, Cosine, and Tangent in Right Triangles
- What "CO" in COsine Means
- Quiz: Expressing Angles Using Inverse Trigonometric Function
- Animation 98
- Animation 99
- Animation 100
- YOUR Linear Speed?
- How Fast are You Spinning?