Which statement about professional development activities is NOT true?

The choice that indicates "Activities can happen on snow days if all staff agree to participate" is the statement that is not true because snow days are typically designated as days when schools are closed due to inclement weather, prioritizing the safety of staff and students. Engaging in professional development activities during these closures would contradict the purpose of a snow day, which is to provide a break from regular school operations.

Professional development activities are intended to enhance teacher skills and cannot be mandated during informal settings of school closures, even with mutual agreement among staff. Additionally, professional development must align with state standards, ensuring that all activities are relevant and beneficial in maintaining educational quality. Lastly, while activities can indeed occur on school breaks, this aligns with policies that strive to respect the time and availability of educators outside regular school hours.