Rosa and her friends return for more fun, conducting basic experiments involving science, technology, engineering and number skills. The books provide examples of critical thinking and tool use. These four books celebrate diversity and challenge gender stereotypes, showing that all children can have a passion for STEM. Rich in specialized language and observational exercises, these books encourage budding scientists to record their findings. Four titles include: Rosa y el experimento del gran puente/Rosa's Big Bridge Experiment, Rosa y el experimento del gran barco/ Rosa's Big Boat Experiment, Rosa y el experimento del gran girasol/ Rosa's Big Sunflower Experiment, and Rosa y el experimento de la gran pizza/Rosa's Big Pizza Experiment. Each book has 20 pages.