![]() ![]() Millions of students use it every month, he says. For nearly a decade, the founder and CEO of Desmos has been building a free alternative that works on web browsers and mobile devices. If Eli Luberoff had his way, no student would need to buy handheld graphing calculators, including the TI 84-Plus. “I also teach Algebra 1, and those students are eager to use Desmos on tests too,” she says.If you took a math class at some point in the US or Canada, there is likely a bulky $100 calculator gathering dust somewhere in your closet. That would be the Texas Instruments 84 - or the TI 84-Plus, or the TI-89, or any of the other even more expensive variants - a shoe-sized graphing calculator released in 2004 that has managed to worm its way into nearly every American math class above a simple arithmetic level. Yenca hopes to expand the use of Desmos Test Mode beyond Eanes eighth graders next year. “Let’s just say we’re in discussions with both organizations,” he coyly tells EdSurge. And if Desmos’ test app continues its smooth rollout, computer-based testing organizations like Smarter Balanced ought to pay heed, especially after their graphing tools have been described as “ confusing” and “ primitive.”Īs far as Smarter Balanced and PARCC state testing go, Luberoff is aware of the opportunity, but is making no promises for the moment. Two Canadian school districts, in Quebec and Ontario, have also approved Desmos Test App for their students’ exams. Yenca adds that “Desmos is more fluid, more interactive” and more user-friendly than graphing calculators, as “the TI graphing calculator is very pixelated.” And while she reports that most of her 49 students still prefer the TI graphing calculator during the tests, many used both tools. He explains, “Since Desmos is on a browser and on a phone, knowing how to use it isn’t a stumbling block when you get into the test.” Luberoff also hopes being available on multiple platforms makes the tool more accessible. Using Casper Focus, teachers locked down student iPads, so that only the Desmos application worked.ĭesmos offers districts an undeniable upside: the app is free, while TI-84 plus graphing calculators retail for around $115. ![]() To get permission from the Texas Education Agency to use the iPad app on STAAR tests, the team at Eanes ISD also had to restrict Wifi and camera access during the exams. They also added a bright blue bar across the top of the screen of the test-compatible app “so that teachers who are proctoring can easily see that students are using the right app,” Yenca explains. “We turned off example graphs, and a feature that solves quadratic equations,” says Eli Luberoff, founder and CEO of Desmos. Yenca collaborated with the Desmos team to create a version of the tool that would be appropriate for STAAR testing. So she figured, why not let students use a version of the familiar tool on their state tests? “Desmos is our go-to graphing tool throughout the school year,” says Yenca. The district provides each student with an iPad for the duration of the school year, which eighth graders can now use in the place of traditional graphing calculators during the exams. On April 20th, 600 students attending schools in the Eanes Independent School District in Austin, TX piloted the Desmos Test Mode app during the eighth grade math STAAR assessment. “And after two test runs prior to testing day, there really weren’t any glitches.” “It’s hard to believe, but my students were among the first in the world to do it,” gushes middle school math teacher Cathy Yenca.
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