What features of speech sounds help us distinguish between different vowels and consonants? What do children learning language categorize about different sounds? What is a spectrogram? What are formants?

Using WaveSurfer to measure parameters associated with stop consonant voicing ▶️ DTube ▶️ YouTube

This is a brief introductory video to the concept of vowel modification. I demonstrate what happens acoustically to the voice when the size and shape of the vocal tract remains relatively unchanged (stable)

SOUNDTRACK AT 14:16 Photos at Facebook.com/Mineralblu ▶️ DTube ▶️ YouTube

Here's a quick video tutorial on adding graph screens to your custom Desmos activities at You can find more how-to videos, as well as our full collection of Activity Builder support materials, at ▶️ DTube

Here's a quick video tutorial on adding questions, text, and images to your custom Desmos activities at You can find more how-to videos, as well as our full collection of Activity Builder support materials,

Here's a quick video tutorial on sharing custom Desmos activities at You can find more how-to videos, as well as our full collection of Activity Builder support materials, at ▶️ DTube ▶️ YouTube

Here's a quick video tutorial on how to use “copy previous”, a special type of graph in the Desmos Activity Builder. You can find more how-to videos, as well as our full collection of Activity Builder

Here's a quick video introducing keyboard shortcuts in the Desmos Graphing Calculator ( You can find more how-to videos, as well as our collection of interactive tours, at List of shortcuts: Shortcut

Here's a quick video tutorial on using integrals in the Desmos Graphing Calculator ( You can find more how-to videos, as well as our collection of interactive tours, at To explore the graph created in

This webinar is designed to introduce participants to the Desmos Graphing Calculator through a blend of demonstration and hands-on experience of basic Desmos functionality. You can find more how-to videos,

At Desmos, our mission is to help every student learn math and love learning math. With that in mind, we’ve assembled a collection of unique and engaging digital activities. And best of all? Everything

At Desmos, our mission is to help every student learn math and love learning math. With that in mind, we've introduced improvements to our free online graphing calculator to ensure that students who are

▶️ DTube ▶️ YouTube

▶️ DTube ▶️ YouTube

▶️ DTube ▶️ YouTube

Learn more about the accessibility features in the Desmos calculators. Resources: Screen reader friendly activities on teacher.desmos.com (search for "screen reader") ▶️ DTube ▶️ YouTube

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UPDATE The interface has changed a bit, so try the restrictions tour in the calculator to learn more: If you'd like to shade part of a graph, try something like this: ▶️ DTube ▶️ YouTube

Here's a quick tour of Regressions in the Desmos Calculator. To try it yourself, head over to ▶️ DTube ▶️ YouTube