Ladders to Literacy has potentially negative effects on oral language, no discernilble effect in other areas

The What Works Clearinghouse (WWC) has released an updated report on Ladders to Literacy, a supplemental early literacy curriculum composed of 60 activities designed to develop children’s print/book awareness, metalinguistic awareness, and oral language skills. The Ladders to Literacy activities can be implemented in a variety of early childhood settings and adapted for children with special needs.

The WWC found that Ladders to Literacy has potentially negative effects on oral language and no discernible effects on print knowledge, phonological processing, and math for preschool children.