Estimation is an important skill that children are informally introduced to through simple phrases like, 'in about five ... MoreEstimation
From a stalk of corn to a pine tree, every plant is made of plant cells. What material is in these cells? How do they ho... MorePlant Cells
Animal cells are the building materials of all creatures, from goldfish to Siberian tigers. Inside each cell are genes t... MoreAnimal Cells
All life on Earth depends on the water cycle! "The Water Cycle" is a fascinating book that introduces children to this i... MoreTime
In this book, young readers will understand how numerical data is communicated through graphing. This book introduces th... MoreGraphing
Colorful photographs show the reader how they can understand the properties and relations of points, lines, surfaces, so... MoreGeometry
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