Promethean vs TernaryCalc

Put classroom collaboration into the hands of students and teachers and panel management into the hands of school IT administrators. The Promethean mobile app is designed for teachers and students to interact with Promethean ActivPanels from anywhere in the classroom. Teachers have the ability to sign in and access their Promethean profile. For IT administrators, the Promethean mobile app helps to enroll ActivPanels into their panel management to make updates easier. Students can • Wirelessly share the screen from their mobile device to ActivPanels with Screen Share or Screen Share in Promethean ActivSuite. • No sign-in required. Teachers can • Wirelessly share the screen from their mobile device to ActivPanels with Screen Share or Screen Share in Promethean ActivSuite. • Access Promethean user tutorials and training materials on Learn Promethean directly through the app.* • Sign in to their Promethean account to access Promethean ActivSuite and sign in to their ActivPanel 9. IT Administrators can • Sign in to their Promethean account. • Wirelessly share the screen from their mobile device to ActivPanels with Screen Share or Screen Share in Promethean ActivSuite. • Access Promethean user tutorials and training materials on Learn Promethean directly through the app* • Enroll ActivPanels into a school organization, name the panel, associate it with groups and verify that it was enrolled successfully. NOTES: • The Promethean app requires a device where a Promethean account can be accessed or Promethean ActivPanel Elements (Nickel, Cobalt, Titanium) series panels with Software Release (SR) 3.2 or newer. • Panel sign in is only available for ActivPanel 9 series. • Screen Share must be enabled on ActivPanel to utilize Screen Share from the Promethean app. * Dependent upon language"

This is a balanced ternary calculator. You can use it to add, subtract, multiply and divide just like any other calculator, only it works with a different number system. This takes a little getting used to, but it opens up an interesting new perspective on arithmetic. In particular, it provides an answer to the question: how do balanced number systems affect the way arithmetic works? When positive and negative numbers are on completely equal footing, does it still make sense to say that a negative times a negative equals a positive? The answer is: yes, it does – but it depends on the direction from which you approach it. This, along with other aspects of balanced ternary calculation, is explored in the ternary calculator. It’s a tool with a story to tell, and the story unfolds in the calculator’s info screen.