Number Planet: How Big is a Polar Bear?
Louise Spilsbury
A book about measurements
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Release Date: 12/02/2026
A book about measurements This fun picture books helps young children get to grips with size and measurement through bold pictures, activities and things to spot on the page.
A fun picture book that helps young children get to grips with size and measurement
Leon and Luna are having a magical adventure around the world comparing and measuring animals, seeing how big redwood trees are and finding out about heavy and light things. Through the story, children aged 4 plus will learn about maths concepts including: how we compare sizes and measure things, and how to measure weight and capacity.
Number Planet are picture books that help children explore first maths concepts. Titles in the series cover the topics of Addition, Subtraction, Measurements and Shapes.