The COR Advantage assesses early childhood development from infancy through kindergarten in eight content areas: Approaches to Learning; Social and Emotional Development; Physical Development and Health; Language, Literacy, and Communication; Mathematics; Creative Arts; Science and Technology; and Social Studies. A ninth area, English Language Learning, can also be used when appropriate (that is, with children whose first language is other than English). Each content area comprises items that address key concepts in early learning, for a total of 34 items plus the 2 items for English language learners. Based on objective anecdotal notes about the child, recorded over time by an observer (such as a teacher, caregiver, parent, or researcher), each COR item is scored using an eight-level scale ranging from 0 (lowest) to 7 (highest). To help observers score the COR reliably and validly, notes are provided for each area, item, and level, along with two anecdotal examples for each level.

Age Group

COR Advantage is a birth-to-kindergarten assessment


Child progress across 8 content areas.

  • Approaches to Learning
  • Social & Emotional Development
  • Physical Development & Health
  • Language, Literacy & Communication
  • Mathematics
  • Creative Arts
  • Science and Technology
  • Social Studies

Children with Disabilities

COR Advantage is appropriate for all children. The eight levels of COR Advantage provide an overlapping continuum so that children can be scored at the developmental and ability level appropriate for them.  This system accommodates children with special needs and developmental delays, as well as those whose early learning may be more advanced in some content areas than others.

ELL Children

A ninth area, English Language Learning, can be used when appropriate and includes measures for monitoring a child’s progress in the acquisition and usage of the English language.

Time of Administration

The COR Advantage is on-going and observation based.

Informing Instruction

COR Advantage supports teachers and administrators in making informed decisions, creating effective lesson plans, communicating with families about their child’s progress, and monitoring the progress of individual children as well as groups of children.  An easy to understand scoring system which includes definitions and examples for all eight scoring levels reduces scoring confusion about where to score a child’s development and maximizes the instrument’s inter-rater reliability. In addition, the ability to create planning reminders while recording observations and to support observations with work samples provide teachers with critical insight in how to individualize instruction for each child.

Using the ongoing information collected teachers create Lesson Plans that represent the interest and developmental skills of all children in the classroom.  Organize your daily plan using the online library of sample daily schedules or create your own daily schedule. Finally select from a library of activities and strategies correlated to each COR item or add your own teacher created activity as part of the planning process.

Family Engagement

Connect with each child’s family through the secure online Family Network. The Family Network can be used to publish observations, work samples, lesson plans, work samples, or send messages that engage families in their child’s progress.  The Family Network includes a library of at-home activities for families to review and/or print to support their child’s learning.

Head Start Alignments

Common Core Alignments

Alignments by State

Please click on a state to see available alignments.
Washington Oregon California Idaho Nevada Arizona Utah Montana Wyoming Colorado North Dakota South Dakota Nebraska Kansas New Mexico Missouri Texas Oklahoma Arkansas Louisiana Iowa Minnesota Wisconsin Michigan Illinois Indiana Ohio Kentucky West Virginia Virginia Pennsylvania Mississippi Alabama Florida New York South Carolina Tennessee Georgia North Carolina Maine Vermont New Hampshire Massachusettes Connecticut Rhode Island New Jersey Maryland Delaware Washington DC Hawaii Alaska

COR Advantage Reports

COR Advantage offers many levels of reporting to meet the varying needs of teachers, families, administrators, and other key individuals involved in your programs education of the young children and families you serve. Reporting levels include child-level reports, classroom reports, school reports, group reports and program-wide reports.

Child Reports
COR Advantage child reports enable teachers to monitor progress in each of the COR domains, view growth across multiple time periods, and compare child scores to other metrics such as the Head Start Child Development and Early Learning Framework and other standards. Child reports are available in both English and Spanish.

Classroom Reports
There are many classroom reports available ranging from composite reports, to reports focusing on a single COR item with all children’s scores represented. Many of the classroom reports are available from the teacher and administrator view.

Administrator Reports
COR Advantage offers many reports for administrators to monitor child progress and program goals.

Learn more about COR Advantage reporting options and selected features. (PDF)

Click a question on the left to view the answer.