“Byrdseed.TV is one of the best investments I have made for our program.” ~ a gifted coordinator in California

Math Lessons
That Make Kids Think

Your students will hunt for patterns in prime numbers, debate whether a graph is misleading, and figure out what happens when you remove the hundreds place. Byrdseed.TV makes it happen without you spending your weekend building lessons.

Math Curiosity: Collatz Conjecture
Math Curiosity: Collatz Conjecture
The Collatz Conjecture: start with any number and get to 1 using just two rules. It seems to always work…
Gr 4, 6
Analyze and Create Misleading Graphs
Analyze and Create Misleading Graphs
Let’s make some intentionally bad graphs to learn how to spot poorly made graphs.
Gr 3, 6
The Game of 100
The Game of 100
Who can get to 100 first in this simple, but delightful, math game?
Gr 2-4
Furnishing A Hotel
Furnishing A Hotel
Design and furnish hotel rooms on a budget. Real math, real constraints, real decisions. Then pitch your hotel to investors.
Gr 4-5
A Visual Guide To Dividing By Fractions
A Visual Guide To Dividing By Fractions
Have you ever wondered what it looks like to divide by a fraction, man?
Gr 5-6
Deducing the Area of Triangles
Deducing the Area of Triangles
Using patterns, students try to deduce where that area formula came from.
Gr 6

Used in over 1,700 districts.

Start a free pilot

Teaching your own class? Start a free trial.

Math lessons and investigations that go way beyond practice problems. Students explore, conjecture, and justify.

Where to start on Byrdseed.TV

Start a free pilot

Teaching your own class? Start a free trial.

I’m Ian Byrd. I co-wrote the book on Depth and Complexity with Lisa Van Gemert and I’ve been building D&C video lessons at Byrdseed.TV since 2009.