“The Think Tank Orange” by ORIGO Education is a textboo focused on measurement and geometric thinking. Authored by Carol Findell and Carole Greenes, this book is designed to help students develop their mathematical skills through engaging activities and exercises. Published by ORIGO Education, the textbook is written in English and includes cards and flashcards for interactive learning. The Think Tank series is tailored towards general math subjects, making it a valuable resource for students looking to enhance their geometric and measurement skills.