Libros de Joseph Otterman (2 libros)

Learn how light pollution prevents us from seeing the stars and causes other problems as well. This Spanish book features a hands-on STEAM challenge that gives insight into how the engineering design process is used to solve real-world problems.

Diwali is a holiday known as India's "festival of lights." It gets its name from the lamps and candles that people light. Diwali is a time to give thanks. Read about this important holiday as you learn addition and subtraction! This Spanish math book combines math and reading skills and uses real-life examples of problem solving to teach subject-area content. The dynamic images, detailed sidebars, practice problems, and math diagrams make learning arithmetic easy and fun. Text features include a table of contents, a glossary, an index, and captions to build vocabulary and increase...