Working with measurements and data is an essential skill for all math students. Readers are introduced to concepts like describing and comparing measurable attributes and sorting objects into categories. Each skill is explained with the help of accessible text and bright images. A simple and fun approach to comparing weights is found in this volume, which is written to reflect the Common Core State Standards for Mathematics, specifically standard K.MD.A.2. This book should be paired with Heavy and Light (978147771944) from the InfoMax Math Readers Program to provide the alternative point of view on the same topic.