How to Use the TI-Nspire CX for Geometry

How to Use the TI-Nspire CX for Geometry

Classroom Practices, Geometry, Technology
Dynamic geometry software allows users to construct, measure and manipulate figures to explore geometry concepts and properties.  This power gets combined with linked multiple representations on TI-Nspire CX handhelds and software, enabling students to make rich mathematical connections in Geometry.  Read on for some ways I use TI-Nspire in my Geometry class. To Visualize Concepts Many geometric concepts are difficult to visualize, especially in a static paper-and-pencil environment.  Dynamic geometry software, such as the TI-Nspire geometry app, allows for motion that clarifies properties for students.  Students do not need to be expert users of TI-Nspire to work successfully with these ready-made documents; in many cases, knowing how to grab and drag a slider or object is sufficient.  To grab an available object, swipe on the Touchpad to move the cursor…
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How to Use the TI-84 Plus CE for Geometry

How to Use the TI-84 Plus CE for Geometry

Classroom Practices, Geometry, Technology
  When students interact with dynamic geometry software, they can construct, measure, and move figures to explore properties, confirm theorems, and visualize geometric situations.  Lessons using this technology allow students to create their own geometry knowledge and are also more fun than reading properties and theorems out of a textbook.  Here are some suggestions on how to use the Cabri Jr. App on the TI-84 Plus CE in your geometry class.   Getting Started First, a quick “how-to” if you aren’t familiar with Cabri Jr.—the small but powerful dynamic geometry App preloaded on your TI-84 Plus CE (note that Cabri Jr. is available for the entire TI-84+ family).  Press the apps button and select Cabri Jr.   The menus F1 through F5 are accessed using the five keys under the screen: y=,…
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Fun Features of the TI-84+ Family

Fun Features of the TI-84+ Family

Technology
I was a panelist for a TI Calculators Webinar that happened to follow a new Operating System release for the TI-84+CE color calculator and its accompanying Apps and computer software.  The new calculator features were not our primary focus, but since OS 5.3 was just released, we tried to highlight them when appropriate. This post summarizes a few features of the new OS version 5.3; I want to share in more detail these fun features that will help my teaching and my students.   1.New shortcut key for the fraction template. I use the fraction template    to make the calculator inputs match the math notation.  It has been available for the entire TI-84+family for several operating systems.  Press ALPHA-Y1 to access the shortcut menu for the fraction and mixed number templates.…
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In The Zone

In The Zone

Classroom Practices, Lesson Design, Professional Learning, STEM, Technology
Teachers Teaching with Technology International Conference    I attended the Teachers Teaching with Technology (T-cubed) International Conference this past spring in Chicago, and my four days were chock-full of thought-provoking sessions and conversations.   As expected, there was much talk about technology in math and science classes, but there was also a great deal of discussion concerning thinking about teaching and learning in math and science classes.  Here are some of my take-aways:   1. Get out of your comfort zone into the “learning zone"   In order to learn something new, get out of established routines (about doing math, about teaching math) and try another technique or perspective.  I pushed myself to learn about topics that are not my specialty, things I might have otherwise avoided.I tried coding some…
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