This is a helpful and interesting thread addressing a core issue for all in early childhood. It's all good advice-but my feeling is there is no "silver bullet" here, in terms of one or two good professional development sessions. That being said, there are a variety of resources and approaches that provide guidance and skills that incorporate the best of what is mentioned above, in particular Nancy's advice re: BDA (akin to what I've seen described as "ABC": Antecedent, Behavior, Consequence) and the thoughts of Luci, Jack and Mary, which reflect approaches influenced by recognized infant/early childhood mental health principles.
Every state represented in this thread so far has a QRIS in place, which should be a good resource. Here in Pennsylvania, as well as in Texas (Nancy's home, above) and Colorado (Mary) among others, there are not only QRIS systems but also active state associations of infant mental health. (In Texas, this organization is called First3Years Texas; in Colorado, the Colorado Association for Infant Mental Health, or CO-AIMH.) These states and many others are implementing specialized professional development opportunities that are competency-based and focus on healthy relationships and cultural sensitivity.
As part of our work at Project LAUNCH in Pennsylvania (and the Project LAUNCH located in Weld County, CO, among other sites) there is direct collaboration between the state AIMH organization and Project LAUNCH to implement these opportunities. I highly recommend that anyone committed to positive approaches to these challenges seek out their state's Project LAUNCH, QRIS system or IMH association for more information. For contact information for Project LAUNCH programs and state QRIS systems, see the following sites:National Resource Center for Mental Health Promotion and Youth Violence Prevention, Project LAUNCH Grantees | National Resource Center for Mental Health Promotion and Youth Violence Prevention (to see states, localities and tribes implementing programs supporting early childhood wellness, including professional development, through Project LAUNCH)QRIS National Learning Network, QRIS State Contacts & Map | QRIS National Learning Network | (for state contacts at QRIS systems)
Hope this is helpful!