Discusses how money was used throughout history.
Young Pythagoras can't seem to stay out of trouble. Every time he tries to help, people get angry. What's a curious kid to do? On a trip to Egypt, Pythagoras' curiosity helps him discover the secret of the right triangle. A clever introduction to the Pythagorean Theorem.
T is for a Time Alphabet uses poetry and expository text to explore the concept of time, from explaining basic units of measurement to showcasing important scientific achievements. Topics include famous inventors (Albert Einstein and John Harrison) and important structures and landmarks (Kulkulkan Pyramid and Big Ben). Budding scientists will discover what world-famous stone structure is believed to be an early calendar, follow the voyages of explorer Ferdinand Magellan to better understand the International Date Line, and learn to tell time using the Zulu time system.
A Math Adventure! Julie Ellis and Phyllis Hornung Peacock team up once again to explore Pythagorean ratios in this humorous sequel to What's Your Angle, Pythagoras? Pythagoras and his cousins want to win a music contest, but first they must figure out how to play their instruments in tune, something that's never been done before. While trying to fix the problem, Pythagoras makes an important discovery--notes that sound pleasant together have a certain mathematical relationship. When Pythagoras applies this ratio to his cousins' pipes and lyres, the result is music to the ears. This book is good for your brain because: Mathematical problem solving, Ratios, Measuring, Musical Theory, History of Instruments
Provides the history of American coins and bills and shows how they have changed over time.
This alphabet book brings the topic of economics down to a child's level, using tangible examples and scenarios to explain complex ideas. M is for Money uses snappy rhymes and expository text to introduce subjects ranging from supply and demand to taxes. Dynamic and witty artwork brings each topic to life.
Four hungry Torosauruses are chasing three fast Mynonykuses. One of them is not going to get lunch! Kids will love counting dinosaurs in this exciting book about numbers.