Desmos Models

Tip for teachers: The key is to teach students how to build these models on their own. In doing so they learn the language of mathematics. It is less important for students to manipulate the predeveloped tools below (although in their play, they develop number and mathematical sense). Use these as models of what can be done in the classroom.

Desmos Activities

Math for Pure Enjoyment

Number Talks

These Google Slides documents are not organized in any particular way. They are dynamically used with students to develop number sense. See Number Talks to learn how to implement these in the classroom.


Make oscillation patterns with salt and with math.
Check out the interesting relationship between the period of a pendulum and its length.
Learn how to estimate the value for pi using a circular object.

Short Films

Use these animations to awaken a sense of curiosity toward mathematics.

Books written by David:

Point Horizon
Too Far to Wander