“…Although there has been considerable research attention paid to the development of literacy in persons with DS in the recent past, outcomes remain highly variable and progress is often slow for younger and older students alike (e.g., Cologon, Cupples, & Wyver, ; Lemons, Mrachko, Kostewicz, & Paterra, ). Moreover, most studies have focused on school‐aged children, adolescents, or adults with DS (see Kay‐Raining Bird & Chapman, ; Lemons & Fuchs, ; Næss, Melby‐Lervåg, Hulme, & Lyster, , ), whereas there have been few studies with preschoolers—though there are exceptions (van Bysterveldt, Gillon, & Foster‐Cohen, ; van Bysterveldt, Gillon, & Moran, ). It also remains uncertain how to adapt interventions to each student to be optimally effective and engender academically meaningful gains (Lemons et al, ).…”