Home

Updated Child Outcomes Year-to-Year and Local-to-State Meaningful Differences Calculator
Updated Child Outcomes Year-to-Year and Local-to-State Meaningful Differences Calculator
Timeline of Common Child Outcomes Measurement-Related Activities: Part B Preschool
Timeline of Common Child Outcomes Measurement-Related Activities: Part B Preschool
Reference this timeline throughout the year as a quick reminder of key activities…
Part C Data Tips: You’re Done with SPP APR, Now What
Part C Data Tips: You’re Done with SPP APR, Now What
Take time to reflect, regroup, and prepare—laying the groundwork now will make next year’s process smoother…
Technical Assistance
Technical Assistance
DaSy Works with you to make sure that each state receives the technical assistance they need.
Learn About DaSy
Learn About DaSy
Funded by the U.S. Department of Education (OSEP), DaSy designs and delivers technical assistance (TA) for Part C early intervention and Part B 619 early childhood special education state staff.


Looking for TA? Learn about ways DaSy can help you…    TA Services

The Latest from DaSy

Events

Part C Child Count and Settings Office Hours
Wednesdays, from June 4 to July 30, 2025, between 12:00–1:00 p.m. PT / 3:00-4:00 p.m. ET. (No meeting on July 16.)

Part C DMS 2.0 Quarterly Calls
July 24, 2025 at 11:00 a.m. PT / 2:00 p.m. ET. Information on DMS updates and …

Data Systems Community of Practice
August 1, 2025 at 12:00 p.m. PT / 3:00 p.m. ET. Connect with colleagues in other states and learn …

2025 OSEP Conference — Progress, Potential, and Possibilities
August 5 – 6, 2025, at the Crystal Gateway Marriott Hotel in Arlington, VA

Featured Tools and Resources

Target Setting Guide Tile

The Impact of Our Work

DaSy helps states build strong data systems and use data effectively to improve outcomes ...
Child Outcomes Summary Knowledge Check (COS-KC)

Child Outcomes Summary Knowledge Check (COS-KC)

Does your state or program use the ECO Child Outcomes Summary (COS) process for ...
SPP/APR Basics, What You Need to Know

SPP/APR Basics, What You Need to Know

A collection of self-directed modules that provide a basic understanding of the IDEA Part ...
State of the States

State of the States

Updated with 2023 data! Maps of national status of IDEA early childhood data systems ...
EC Data University

EC Data University

Resources to help you build competency in data analysis, and data use, and data ...
DaSy Framework

DaSy Data System Framework

Supporting Part C and Part B 619 programs developing state data systems ...
DaSy Critical Questions

Critical Questions About Early Intervention and Early Childhood Special Education

What questions should data users, such as program directors, advocates, and policymakers, be asking? ...
For Families

For Families

Are you a parent who wants to learn more about early childhood IDEA data ...