(with the help of Casper Focus)…

You made a liar out of me.

Two short years later, @Desmos “made a liar out of me” đź™‚ Watch 24:40 @ HCMS on @livestream: http://t.co/94HuPTkf2A https://t.co/Tct5xhJE1H

â€” Cathy Yenca ďŁż (@mathycathy) April 21, 2015

*Did you catch that? Â When asked, â€śWhat about calculatorsâ€¦ did the iPads replace your calculators? Or do the kids need those as well?”*

*I actually said, “The answer is no, because of testing. Â They’re not going to be allowed to use an iPad calculator in standardized testing… there are some neat apps and websites like Desmos… but it’s never going to replace that calculator… we have to get comfortable knowing the iPad is not going to be present when you have to take a test.”*

Isn’t it amazing that a task that was thought to be impossible was accomplished so quickly with gusto? Â It’s true – * my Math 8 students were among the first… in the world perhaps… to use their iPads on a state assessment.*Â Not only does this year mark the first opportunity for Texas Math 8 students to use a graphing calculator on state tests, but our students had the option to use a TI graphing calculator… or Desmos on their iPads… or both tools! Â The process leading up to STAAR testing day was paved with preparation and practice, and it paid off.

Our Director of Innovation, Carl Hooker, shares details in this post of all the technology preparation that had to happen both behind the scenes as well as with students through several “test runs”. Â Using Casper Focus, student iPads had to be “locked down” in a version of Desmos that was standardized-test-friendly.

This meant that the Desmos we all know and love had to be stripped down a bit. Â I was honored to be part of the process of helping advise ways to tweak Desmos to be a test-friendly tool, resulting in the FREE Desmos Test Mode app. Â The folks at Desmos are such a pleasure to work with, even responding to a passionate student of mine who contacted them in hopes of employment with Desmos some day! Â Yes, one of my 7th graders loves Desmos SO MUCH that he’s looking for ways to connect with them already. Â *Thank you, Desmos, for responding to him and acknowledging and encouraging his excitement!*

If you’ve read Carl’s post, you know the background process. Â Now that testing day has passed with success, I decided to follow up with my students to ask a few questions about having access to both TI calculators and Desmos Test Mode on iPads. Â In terms of instruction, and knowing that students would have the opportunity to use both graphing tools on the STAAR test, I did my best to encourage the use of both tools throughout the year. Â Together,Â my students and IÂ aimed to learn to use each tool effectively, as well asÂ make wise decisions about which tool was best/most efficient to use for each mathematics topic we studied.

Using Socrative to gather quick feedback, I first asked students which tool they prefer to use. Â The results surprised me! Â With both tools in hand all year, I was sure most students would say they liked the tools equally… well, that didn’t happen!

I also asked students to provide me with a list of lesson topics for which they preferred the TI calculator over Desmos, and vice versa. Â Here’s a spreadsheet of their (anonymous) responses.

Desmos Versus TI Graphing Calculator Yenca

Perhaps these iPad STAAR Test trailblazers’ feedback will help Desmos continue to improve. Â For now, at least with my tiny sample of 49 students, it appears TI still has a strong role… even in the 1:1 iPad classroom.

Thank you, Ed Surge, for chatting about Desmos Test Mode and featuring our excitement here. đź™‚

How exciting, Cathy! That’s fantastic news, and a real testiment to all that’s possible with online testing as we are forced to continue down the standardized-testing road to riculousness. You and your students are truly pioneers.

I’m more interested in getting Desmos to the point where I can let students use it on my own tests. That’s where the power of the app will truly be seen. Teaching math from a graphing standpoint opens up a whole new mindset among students as to the usability of math. It transforms math from an abstract subject into a usable one as students grasp the true nature of function structure and equation solutions as it relates to real life.

Thanks for your comments, Heather!

Now that our district has the capability to “lock” students into Desmos Test Mode on their iPads, I have permitted students to use Desmos on assessments throughout the school year. Students may also use their TI graphing calculators if they choose. I think it’s powerful because students have used these tools during instruction, and using them for assessments makes perfect sense.

Cathy — it was such a pleasure working you and the rest of Eanes on this project!

Those results are fascinating. Thank you for collecting all of that — it’s a question we should be asking more often. Let’s work together in the coming months and years to make sure that students love using Desmos even in high-stakes environments. Ideas, questions, suggestions: calculator@desmos.com

Feelings completely mutual, Eli! You and the Desmos crew are a stellar group! I look forward to future endeavors!

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Does anybody know if Desmos has a similar app for devices other than iPads?

From a system standpoint, if they could have an app for phones, then students could sign in to a class code for a test, which then locks down their phone into that app for a specific length of time for the test. Teachers would have an account to set up tests in and monitor student sign ins. When the teacher sees all students logged in, test gets distributed and cheating is taken care of.

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