There are silicone pads that should work for baking ... but not sure it would be a good idea to leave them in for broiling since they may have temperature limits -- but they should be easy to remove and put back in. See if the manufacturer of your oven says you shouldn't use them.

https://www.google.com/search?q=silicone+bottom+oven+pad&source=lmns&tbm=shop&bih=654&biw=1366&client=firefox-b-1-d&hl=en&ved=2ahUKEwjj5L3ehJfqAhWNCd8KHWj2CJYQ_AUoAXoECAEQAQ

With teenagers baking. We are tired of cleaning the oven. thank you Sue, I will check out the silicone pads

For the frequent summer baking if the items being baked by your teens are small, you might also consider investing in a toaster oven rather than heat up larger oven. You could even carry them outside on a porch or deck or patio where there's an electric outlet.

https://www.walmart.com/ip/Hamilton-Beach-Toaster-Oven-Model-31146/51755733?wmlspartner=wlpa&selectedSellerId=0&&adid=22222222227046664832&wl0=&wl1=g&wl2=c&wl3=90348063049&wl4=aud-430887228898:pla-256020766029&wl5=9011051&wl6=&wl7=&wl8=&wl9=pla&wl10=8175035&wl11=online&wl12=51755733&veh=sem&gclid=EAIaIQobChMIh5qpr42X6gIV8wiICR3BTgw7EAQYASABEgIYV_D_BwE

I use the Yoshi copper oven liner. Cut to size, put on your lowest rack, throw away when it gets gross. I too have a teen who loves to cook in the oven, so these are great!

i buy mine at Bed, Bath and Beyond In the kitchen section.

https://www.bedbathandbeyond.com/store/product/yoshi-trade-copper-non-stick-oven-liner/1062518505?skuId=62518505&enginename=google&mcid=PS_googlepla_nonbrand_kitchenfoodprep_local&product_id=62518505&adtype=pla&product_channel=local&adpos=&creative=356249224553&device=c&matchtype=&network=g&utm_campaignid=71700000053968480&utm_adgroupid=58700005145007536&targetid=92700045203741084&gclid=EAIaIQobChMI7KnT7MiX6gIViorICh0F9QiGEAQYASABEgJyc_D_BwE&gclsrc=aw.ds

I recommend against using the self cleaning feature if you have a liner in the oven.

There are “disposable” aluminum baking pans. I have a large oven and use two of the foil pans to cover the bottom of my oven.

Just put a pie on a cookie sheet, etc. Also, read here for horror stories of self-cleaning -- breaking the glass in the oven door, melting cabinet trims... -- it seems like something they don't really intend for you to use!

If it is a gas oven, no, you can't. I don't see any reason why not in an electric oven, but check your owner's manual. It will tell you if not.

If you have lost the manual, nearly any manual is available online. Just google your brand and model #.

Here is a liner made of fiberglass that works in gas, electric, etc.

https://www.lakeside.com/Kitchen---Dining/Appliances---Gadgets/Set+of+2+Reusable+Nonstick+Oven+Liners/prod860555.jmp?&mrkgcl=888&mrkgadid=3285848326&cid=GooglePLA-239027014&ukwcid=+&product_id=239027014&adpos=&creative=264490301198&device=c&matchtype=&network=g&gclid=Cj0KCQjw0Mb3BRCaARIsAPSNGpUqVXTJtuoHG1d9eyNJ0wN81ldWyalxHuWsINeKp4kzd7htLa1bY0EaAv_eEALw_wcB&gclsrc=aw.ds

I wouldn't leave it in if I use the self cleaning mode. But then you wouldn't leave anything in there anyway.