This document discusses dimensions of 21st century learning design for making the Australian curriculum more relevant. It provides descriptions and levels of proficiency for dimensions including collaboration, knowledge building, use of ICT, self-regulation, communication skills, and solving real-world problems. For each dimension, it gives criteria for levels of implementation from 0 to 4, with higher levels indicating greater student engagement, autonomy, use of 21st century skills, and application to authentic contexts. The overall document provides a framework for assessing and improving how well learning activities incorporate 21st century skills.