“…Literacy 3D was inspired by earlier PBTC models (Snyder, 2012) and past work (Abbott, Atwater, Lee, & Edwards, 2011;Abbott, Knoche, Beecher, Petersen, & Payette, 2012). Abbott, Beecher, Petersen, Greenwood, and Atwater (2015) reported using a Tune-Up Checklist (TUC) as a means of planning the activities to be implemented in a coaching cycle. The TUC was used to determine what needed to be accomplished across six topics (content of instruction, opportunities to learn, grouping for instruction, explicitness of instruction, strategy selection, and language challenge considerations).…”