I love my DVR. I can record my shows and movies and watch them whenever I want. I know that when I record HD programs my DVR fills up fast. To account for that I often record shows in non-HD (SD format). This has me wondering: can I use some basic info that my DVR is giving to me to determine how many hours of HD and/or SD programming that my DVR can record? Check out the video to get started.
In the video I delete a SD (non-HD) program. Then I delete an HD program. How can I use this video to help me better understand the HD and SD storage that my DVR can hold?
If I only record HDTV programming on my DVR about how many hours of recording time will I have?
If I only record SD (non-HD) programming on my DVR about how many hours of recording time will I have?
How many hours of SD programming can I record for every hour of HD programming?
What percent of DVR memory is equivalent to one hour of SD or HD recording time?
Should I consider my calculations as an estimate or exact? If an estimate, then how much HD and SD recording time might my DVR actually have? What values make sense?
The activity: DVR-Dilemma.pdf
For members we have Word docs and solutions.
Actual Recording Time (Picture)
Great opportunity for a discussion on why student answers might be different than the actual recording time!
CCSS: 6.RP, 6.EE, 7.RP, 7.EE, 8.EE.7, 8.EE.8, A-CED