About Us

Children follow natural developmental progressions in learning. Curriculum research has revealed sequences of activities that are effective in guiding children through these levels of thinking. These developmental paths are the basis for learning trajectories. 

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The Marisco Institute is dedicated to research and social policy in improving learning environments and outcomes for children, birth to age 8. 


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We provide research and evaluation services for both large and small scale programs, as well as professional development aligned to our research.

Our research, including selected publications and funded projects, are summarized here.

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We work in collaboration with others across the University of Denver who are interested in early childhood research and policy.


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Many contributions to this site have been generously made by children, parents, teachers, school administrators, professional development coaches, researchers, and other organizations. 

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Learning and Teaching with Learning Trajectories [LT]2 is a creation of Drs. Julie Sarama and Douglas H. Clements, funded by the Heising-Simons Foundation and the Bill & Melinda Gates Foundation [© all rights reserved].

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Special Thanks To