Learning progression grades 1-5; teacher pedagogical content

We’re trying to research a learning progression model for teaching CS/CT as student advance from grades, 1, 3, and 5. Specifically, we are looking for any research on appropriate computational thinking learning activities for each of these grades.

In addition, does anyone know of research related to the development of teacher pedagogical content, knowledge, skills focused on computational thinking.

Linda Hefferin, Ed.D.
Illinois Science and Mathematics Academy