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Another Triangle and Circles Phenomeon

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BTC Navigation Tool Creation: Time Saving Tips

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BTC Automated Grading Rubric: New Updates (AUG 2024(

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For BTC Teachers Who Are Required to Implement Standards Based Grading Where Every Objective = 4p

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11 Nets of a Cube Demo

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Alternate Way to Construct an Isosceles Triangle

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Distributive Property Challenge in Graspable Math

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Discovering the Order of Operations: Part 1

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Adding Logarithms: What Do You Notice?

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1001 Coins: From Peter Liljedahl's "Building Thinking Classrooms"

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Working with Dot Product at a Deeper Level

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Volume of a Sphere

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Companion Mode Demo in Desmos Classroom

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Pythagorean Theorem with Regular Heptagons

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Logarithms are Exponents: Nothing More, Nothing Less!

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Finding Surface Area of a Rectangular Prism

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Triangle Trisection Phenomenon

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Where to Sit? 🤔

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Happy π Day!

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Regular Dodecagon Surprises!

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What Grading in a Thinking Classroom Looks Like During my Planning Period

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Thébault’s Theorem

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Corresponding Angles of Similar Figures

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Thin Slice Tasks: Using Trig to Solve for Sides of Right Triangles

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Why Right Triangle Trig Works

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Right Triangle Trig Intro in a Thinking Classroom

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How to Easily Record BTC Student Data on Your Phone

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GeoGebra CAS Writes Expressions in Simple Radical Form!

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Use Graspable Math to Solve a Quadratic Equation

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Making Sense of the Equation of a Plane

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Area Changing Illusion with Some Insight

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Open Middle: Distance, Midpoint, Slope (2)

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Area Changing Illusion Explained

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Happy Valentine’s Day 2024!

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How to Rationalize a Denominator in Graspable Math

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Calculus: Derivative Explained Meaningfully

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Discovering How to Simplify Radicals in a Thinking Classroom

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2 Equilateral Triangles Wonder

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Crazy Triangle Phenomenon! 🤯

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Changing Area Paradox?

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Exploring the Pythagorean Theorem Conceptually

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Circle & Equilateral Triangle Phenomenon

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Using Algebra Tiles to Solve Equations with Fractional Coefficients

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Strategy to Help Students Struggling to Use a Protractor

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Measure Angles Any Way You Want!

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Surface Area if a Sphere: Rough Estimate

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Isosceles Triangle Theorem & Its Converse

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Circumference and Radius Relationship

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Thin Slice: Exploring Similar Triangles (Task 5)

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Special Right Triangle (2): Task 8

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Simple Radical Form: Demo 3

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Simple Radical Form: Demo 2

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Simple Radical Form: Demo 1

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Thin Slice Activity for a Geometry Thinking Classroom

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Equation of a Circle: Conceptual Discovery via Thinking Classroom

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Teaching Idea: Create a Distance in the Coordinate Plane

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Converting Polar Coordinates to Rectangular Coordinates

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Finding Coordinates of an Endpoint

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Making Sense of Your Child's Math Grade

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Finding Midpoint in the Coordinate Plane