Google Chromecast is a “dongle” or a plug-and-play device that teachers can plug into the HDMI port of a projector or Smart TV. Once plugged in, the Chromecast installation is simple. The dongle must be on the same Wi-Fi network as the devices in the classroom, and the teacher must download the Google Home app. After the app is downloaded, the teacher must follow a few simple on-screen installation instructions to customize the Chromecast settings to meet the needs of the classroom/students. Once Chromecast is installed, teachers and students can cast both audio and video content from their mobile devices (smart phones, laptops, tablets, etc.) to a Smart TV or projector wirelessly. Teachers often use Chromecast to share online demonstrations, app explanations/tutorials, presentations, videos, multi-media content, and other educational resources with their students.
Chromecast is an affordable device. The cheapest, most basic
model costs $29.99; however, the cost will vary depending on the specific model
and features needed for each classroom.
Additional costs could include any extra adaptors or cables needed to
connect the dongle, as well as subscriptions to educational content streaming
services if a teacher desires to use those.
an image of the Google Chromecast Dongle
The R.A.T. model is a tool developed by Dr. Joan E. Hughes that allows teachers to assess their own classroom technology integration. The RAT model is used below to assess the efficacy of the use of Google Chromecasts in K-12 classrooms.
Replacement
The “R” stands for Replacement. Google
Chromecast can serve as a replacement for textbooks, anchor charts,
posters, overhead projectors, etc. Instead of having to create paper-based visuals
or bulky charts, teachers can share interactive content (educational videos,
images, presentations, text, photographs, etc.) in a more dynamic and engaging
way on a large screen.
Amplification
The "A" stands for Amplification. Google Chromecast
can amplify instruction by increasing efficiency and productivity in the
classroom. Teachers and students can quickly and easily share
work, videos, instructional content, projects, presentations, etc. wirelessly. The ease of use and lack of cables, wires, plugs,
etc. maximizes every instructional minute and encourages active participation
and creativity in the classroom.
Transformation
The “T” stands for Transformation.
Google Chromecast transforms instruction by making presentation
of the content more engaging, creative, and authentic. Chromecast in the classroom enriches the instruction
for teachers as well as the the learning experience for students. It is a valuable tool for teachers that desire
to use technology in their classrooms in a relevant, interactive way.
R.A.T. graphic that explains the components of the RAT Model
Additional Resources for Teachers:
Chromecasting in a Classroom - How to Setup
References:
R.A.T. model. (2016, June 24). Tech Edges. Retrieved July 9, 2025, from https://web.archive.org/web/20190612101737/https://techedges.org/r-a-t-model/
Streaming help. (2025, July 9). Google. https://support.google.com/chromecast/chromecast?visit_id=638876845690391773-3238203753&hl=en&rd=1#topic=3058948
Hi Jenna,
ReplyDeleteI am not familiar with Chromecast, but it sounds like a great resource for the classroom. One feature that I am interested in is the screen sharing feature. This is a feature I can see myself using often in the classroom, and I think many teachers would appreciate it as well. The capability for students to share their work in real time could increase student engagement and empower their learning. I would love to be able to share student examples in real time and have them explain their work and thinking. From a teacher’s standpoint I think it could ease some of the workload involved in managing student's work and allow them to seamlessly share with the class. A lot of the time, the student login and view are different from those of the teachers, so I think screen sharing capabilities would also be helpful for easily showing students how to navigate different learning platforms from a student’s point of view.
Thank you for your breakdown of the Google Chromecast using the R.A.T. model! Your analysis provides a clear and practical resource for educators to evaluate how they're using the technology. I thought your application of the framework was perfect: it’s easy to see the Chromecast as a simple replacement for cables or posters, and articulated the amplification of student participation and the transformation of lessons into more dynamic, interactive experiences. You have successfully shown how a simple, affordable tool can be used with real pedagogical application. By moving beyond just the "what" and focusing on the "why" and "how," you've provided a useful guide for teachers looking to expand their tech integration.
ReplyDeleteI owned a Chromecast device many years ago so I could stream movies and shows when I was away from home without having to watch the small screen of my phone. So I was already familiar with the device. However. I had never thought to use it in the classroom. I often see reels on social media sites that I think my students would benefit from seeing, but I always struggle with how to make them shareable in the classroom (social media is blocked on most school devices). Your description of how they can be used to transform instruction to make it more engaging (realistically most teens are more engaged with social media than pretty much anything else) has clarified what I have intended to do, and why it is pedagogically sound. This is something I will consider when I return to the classroom.
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