Like I do practically whenever Daylight Saving Time ends or starts, I have congregated a handful of brief video explanations about why we have Daylight Saving Time. See and take a look if there is one that can help you discuss Daylight Saving Time to your students..
National Geographic has actually 2 videos titled Daylight Saving Time 101. The very first one, published in 2015, is a bit more positive than the 2nd one that was released in 2019. Both versions are ingrained below..

If it isnt as concise as the videos above, CGP Greys video description of Daylight Saving Time is still an excellent one even.

TED-Ed has two lessons that arent particularly about Daylight Saving Time however relate to the subject. The History of Keeping Time describes sundials, hourglasses, and the development of timezones. Second, How Did Trains Standardize Time in the United States? explains the role of railways in the development of the timezones utilized in the United States (and most of Canada) today.

Daylight Saving Time ends today for much of my friends in Europe and it ends next Sunday for those people in North American states and provinces that observe Daylight Saving Time. As someone who gets up early and lives in a northern state, I welcome the modification as Ill see the sun an hour previously. And ideally, my kids will take advantage of the “additional” hour of time for sleeping next Saturday night.

The Telegraph has a 90 second description of Daylight Saving Time. The video doesnt have any narrative so it can be seen without sound.