My new book: Coming August 5, 2026 just in time for Fall!
Great for K-2 teachers, parents of 4-9 year olds, and math lovers.
The Geometree turns math into magic, blending nature, imagination, and design. A lyrical celebration of creativity and curiosity, the book invites young readers to play with patterns, explore STEM concepts, and discover that they, too, can be shape-makers.
One spring morning, curious young Mira discovers a mysterious tree unlike any she has seen before-the magical Geometree, a nearly extinct wonder with the power to create leaves in every imaginable shape. With each wish, Mira explores triangles, quadrilaterals, stars, snowflakes, and beyond, discovering the beauty of geometry all around her. Season after season, she and the Geometree turn math into magic, blending nature, imagination, and design. A lyrical celebration of creativity and curiosity, The Geometree invites readers to play with patterns, explore STEM concepts, and discover that they, too, can be shape-makers.
Available for presale now, see links below. I hope you’ll find it magical!
Beautiful and empowering. My geometry heart is full, and yours will be too. Kelly Darke and Mireille Belajonas have collaborated on a dream of what math can be for all children. Read. Enjoy. Share it widely!
-Christopher Danielson, author of Which One Doesn’t Belong? and founder of Math On-A-Stick
This lyrical, geometric fairytale will transform the way you look at both shapes and the leaves of trees. Geometree’s joy and Mira’s wonder will have you searching for, sketching, and imagining polygons, constellations, leaf-shapes, and the infinite possibilities of shape-making.
-Amy Alznauer, Mathematics Lecturer at Northwestern University; Author of The Boy Who Dreamed of Infinity and The Five Sides of Marjorie Rice, both from Candlewick Press
The Geometree provides the perfect balance of mathematical language and magic. This story and its accompanying illustrations will expand how children think about shapes and invite them to create their own shapes for the tree.
-Annie Forest, Instructional Mathematics Coach, Consultant and Educator
Kelly Darke
I’m a mother, teacher, author and lover of mathematics. This website offers a curated collection of resources for sharing the wonder and joy of mathematics. I hope teachers and parents find it useful.
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Fairy Math Mother 