Desmos: So Much More Than Just Graphing Jeff Parent & Imad Dakka

Topics to cover - partial list! You can shut off: Minor Grid lines, Major Grid lines, Axis Can Graph in Polar Numbers on the axis Arrows on the axis Make sliders for “constant” values Projector Mode Trig Scale Tables Piecewise functions Graphing inequalities Regressions Insert Pictures Insert Notes Make multiple accounts, search for topics/sections. Functions that are defined in terms of functions. Summation notation Enable Marble slides and Card sort Google things you want to know, for instance “normal curve, desmos” or “Riemann Sum Demos” https://www.desmos.com/calculator/h2e333 mzcu (Riemann Sum)

“Projector Mode” Without With

Step size and grid lines Without steps or grid lines With grid lines

Step size and grid lines With steps large steps/ grid lines With steps or grid lines

Arrows/trig steps - Type “Pi” to get the symbol: No arrows and integer steps Arrows and trig steps

Notes, labels, points.

Inserting: notes and pictures

Piecewise functions, inserting pictures, and notes

Piecewise functions - speed of sound y={condition/range of x’s : equation , condition/range of x’s : equation} y={0<x<11.5:-4x+11.5, 11.5<x<22:295,22<x<32, 32<x<50: 3x/4 + 278.5, blah, blah, blah….}

Piecewise functions - done simpler Guilty Pleasures: not having to solve for y and graphing vertical line easily

Graphing linear inequalities

Inserting: Tables (max of 50 points)

Not your dad’s rootbeer regression

Not your dad’s rootbeer regression

Parameters Adjust manually or set to play Select “All”

Insert a .jpg

Adjust the parameters to fit. http://bit.ly/adjustparameters

Area in Polar Coordinates http://bit.ly/areapolar

Area in Polar Coordinates

Slope as an Approximation to the derivative http://bit.ly/secantline

Slope as an Approximation to the derivative

Using a summation as a function http://bit.ly/conv_ps

Using a summation as a function

Integrals and area, using the standard normal curve http://bit.ly/normalarea

Riemann Sums using desmos http://bit.ly/riemannsum

Creating your 1st activity: teacher.desmos.com Create an account on Desmos -they don’t spam! Go to teacher.demos.com/labs and (while signed in) turn on “Marble slides” and “Card sorts”. While signed in, click “custom” Choose “Polygraph” or “New Activity”

Turn on Marble Slides and Card Sort !!!!!! You must turn on Marble Slides and Card Sort to be able to use these features. Go to: teacher.desmos.com/labs and check the boxes there.

Creating a Custom Activity: Polygraph

Create the Polygraphs

Polygraphs: Create a link or give students the code Students will get a primer to help them understand the game. They can skip this primer once they know how to play.

Polygraphs - for pairs of students, Jeff and Imad

Polygraphs - Jeff’s view as the “Picker”

Polygraphs - Imad’s View as the guesser

Imad can eliminate graphs based on Jeff’s response

Polygraphs -eliminate all graphs but one!

Polygraphs - It took 4 questions, can you beat that?

A quick follow-up question before changing sides

Teacher View of the game

Creating a Custom Activity: Marbleslide (and more)

Creating a Custom Activity: Your Choices

Custom activities: What is a marbleslide?

What is a card sort?

What is a card sort?

Creating a Custom Activity: Graphs

Creating a Custom Activity: Sketch You can use slides in combinations. Here, you can get student answers from “input” or “choices”.

Creating a Custom Activity: Multiple Choice

Multiple choice

Creating a Custom Activity: Multiple Choice Multiple choice - have students give a reason for their answer!

Send your student to your activity! Desmos Activity for League Conf. 2018

Teacher View

The student experience https://student.desmos.com/?prepopulateCode=________

Tips! When in doubt, google it! “Standard Normal Curve Desmos”. https://www.desmos.com/calcula tor/t9uetudxju Have an account for each course, save and title your work for instant recall later and/or sharing. Have fun! Try things. Go to http://learn.desmos.com and look around! Tips!

bit.ly Links! bit.ly/nonlinearreg - nonlinear regresion bit.ly/normalarea - integration/area under normal curve bit.ly/riemannsum - Riemann Sum bit.ly/adjustparameters - Adjusting parameters bit.ly/conv_ps - Convergence of power series bit.ly/areapolar - Area in Polar bit.ly/secantline - Secant line limits to tangent line

Thank you!

Creating a Custom Activity