Professional Development

See the Marsico website for information on our professional development offerings. 
Learning Trajectories are intended to be used with professional development. Research shows that when teachers understand how children develop mathematics understanding, they are more effective in questioning, analyzing, and providing activities that further children’s development than teachers who are unaware of the development process. Consequently, children have a much richer and more successful math experience.
LT2 Facilitators Guide General Introduction.pdf
LT2 Facilitators Guide Counting.pdf
LT2 Facilitators Guide Subitizing.pdf
Myths about Learning Trajectories  
Mitos sobre las Trayectorias de Aprendizaje  - Spanish Version

Early Math Resources for Teacher Educators from our partners at DREME

Dispelling the Myths: What the Research Says About Professional Learning from RPPL

Myths of Early Math

Math in the Early Years

Formative Assessment - An Essential Piece of Professional Development

Special Thanks To

Institute of Education Sciences
The research reported here was supported by the Institute of Education Sciences, U.S. Department of Education, through grant numbers R305K050157, R305A120813, R305A110188, and R305A150243. to the University of Denver. The opinions expressed are those of the authors and do not represent views of the Institute or the U.S. Department of Education.