Florida Department of Children and Families (DCF) Rules and Regulations for Facilities Practice

The appropriate supervision ratio for mixed-age groups that include children under 1 year is crucial for ensuring safety and meeting developmental needs. According to Florida Department of Children and Families regulations, when supervising children of varying ages, particularly infants who require more attention and care, supervisors must be particularly vigilant.

The guideline that allows one staff member to supervise four children, including infants, reflects the understanding that younger children, especially those under the age of 1, necessitate more focused oversight due to their vulnerability and need for direct physical and emotional support. Keeping the group size limited to four enables the staff member to effectively engage with each child, ensuring safety and quality interactions, which are essential for proper development.

The other options suggest higher child-to-staff ratios that do not take into account the specific challenges and needs presented by mixed-age groups, particularly with the inclusion of infants. Thus, the selected answer aligns with best practices in childcare and reflects the legal standards set forth by regulatory authorities for the safety and well-being of all children involved.