A division of concepts in accordance with the new progression benchmarks. Four pages of exercises in a chapter compared to two previously, and an “Expert Mode” at the end of each ability. Motivating problems with three difficulty levels to facilitate differentiation and PA; challenges and puzzles. A new “Demonstration mission” section. An expanded review section of the prerequisites. An emphasis on algorithms and digital tools, including a chapter dedicated to Scratch and activities for working “plugged in” or “unplugged”. A new “mental calculation” part to practice all year round. Additional Flash Questions in the activities, in the exercises and in the Mental Calculation section. Many resources to download to save time with students, including mind maps to complete.