Impact of Core5 for Entering English Learners with Low English Proficiency

Lexia Research & Analytics (

Suggested Citation:

Lexia Research & Analytics. Impact of Core5 for Entering English learners with low English proficiency. Concord, MA: Lexia Learning Systems LLC, A Rosetta Stone Company.

Key Findings
  • English Learners (ELs) with the lowest language proficiency level on WIDA (i.e., Level 1 Entering) made substantial gains on the GRADE (a standardized reading test) following two years of Core5 use, ending the second year scoring well within the average range on the test.
  • ELs with higher proficiency levels and non-ELs receiving the same Core5 instruction also made gains on the GRADE.  However, gains made by Level 1 Entering ELs were larger in magnitude than other students in their grades.  
iste 2018 graph


download brief
Try Core5 Student Lessons