Teachers' scaffolding behaviors support children's self-regulation skills in the classroom. However, little evidence is available regarding the presence of self-regulation scaffolding behaviors in preschool teachers, and how they vary throughout the year and in different learning experiences. Less is known about these behaviors in Latin American…

"Un Buen Comienzo" [A Good Start] was a professional development program implemented with prekindergarten and kindergarten teachers in Chilean public schools serving low-income families. In a randomized trial, the program showed moderate to large impacts on classroom quality but no impacts on targeted child outcomes. To unpack these…