ISBN-13: 9780716614777 / Angielski / Miękka / 2013 / 34 str.
ISBN-13: 9780716614777 / Angielski / Miękka / 2013 / 34 str.
What are numbers? What were the counting methods used by ancient Egyptians, Babylonians, and Greeks? Read this book to find out Building Blocks of Mathematics features quirky characters who introduce and demostrate critical basic mathematics concepts. This fun and inventive series was designed in collaboration with elementary mathematics education experts.