1. A Learning Trajectory for Variables Based in Computational Thinking Literature: Using Levels of Thinking to Develop Instruction. Issue 2 (3rd April 2022) Authors: Rich, Kathryn M.; Franklin, Diana; Strickland, Carla; Isaacs, Andy; Eatinger, Donna Journal: Computer science education Issue: Volume 32:Issue 2(2022) Page Start: 213 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗