From Newton Public Schools:

COVID tests have been distributed to students this week so that you will have tests to use before returning to school and during the week after the break. NPS and Newton HHS strongly recommend that you test your student on Sunday, April 24, 2022 prior to the return to school.
The state has recently indicated that COVID test kits will continue to be provided to students and staff who have opted into the program after the April break. This is good news and we encourage you to opt in! Opt-in through your Aspen parent/guardian account: Aspen. Follow these instructions once you are logged in.