How to locate a lost phone without find my phone enabled?

Two days ago, I lost my iPhone! I am an elementary school teacher. We were busy making projects with the kids. After taking a few pictures, I can't remember where I placed the phone. Unfortunately, I did not enable find my phone and the ringer is on silent. We know the phone is receiving calls as we've called it with my husband's phone.

Is there a way to find the phone's location?

Thank you!