Two pictures that look identical until the tenth second of looking are the whole idea behind this Wonder House Books activity title.
Each puzzle sets a pair of illustrations side by side with a fixed number of changes to find, and the difficulty rises gently as the pages go on. Working through them trains visual discrimination, concentration and the habit of comparing carefully before answering. The format needs nothing but the book itself, which makes it useful for journeys, waiting rooms and quiet periods in class.
Practical notes:
• Paired illustrations with a set number of changes
• Difficulty that builds across the book
• Exercises for attention span and visual comparison
• No pieces or accessories required to use it
Made for preschool and early primary children, published by Wonder House Books and part of the activity range at Boipoka.