La historia de: los sistemas numéricos: Valor posicional

Learn the history of number systems with this engaging Spanish book! This text combines mathematics and literacy skills, and uses practical, real-world examples of problem solving to teach math and language arts content. Students will learn place value while reading about the number systems of the Egyptians and Romans, and also learn important vocabulary terms like cuneiform, binary systems, roman numerals, and more! The full-color images, math charts, and practice problems make learning math easy and fun. The table of contents, glossary, and index will further understanding of math and...

The moon people use a cloud bridge to travel to the Earth, a messy but beautiful world of incredible variety that becomes their new home.

A farmhouse filled with chickens, spiders, little owls, magpies, and geese are busy doing what farm animals do. They build nests, incubate eggs, and play. Wake up in their amazing world!

Een getrouwde bestsellerauteur komt voor het blok te staan als zijn maitresse aankondigt dat ze zwanger van hem is.

What keeps objects from floating out of your hand? What if your feet drifted away from the ground? What stops everything from floating into space? Gravity. As in his previous books, Redwoods, Coral Reefs, and Island, Jason Chin has taken a complex subject and made it brilliantly accessible to young readers in this unusual, innovative, and very beautiful book.