When a young child decides to build a fort in the backyard, Grandpa comes forward to help. But they can't do it alone--they get help from the six simple machines: lever, pulley, inclined plane, wheel and axle, screw, and wedge. Told in cumulative rhyme, similar to The House That Jack Built, readers follow the building process to completion and discover the surprise reason it was built.
Cuando un niÃ±o decide construir una fortaleza en el patio posterior, el abuelo viene a ayudarle. Pero no pueden hacerlo solos â€” reciben la ayuda de las seis mÃ¡quinas simples: la palanca, la polea, el plano inclinado, la rueda y eje, el tornillo, y la cuÃ±a. Dicha en rima acumulativa, los lectores seguirÃ¡n el proceso de construcciÃ³n hasta el final y descubrirÃ¡n la sorprendente razÃ³n por la cuÃ¡l fue hecha.
It's fun to count. It's even more fun to count with someone you love!
See how we use numbers, tallies, and charts to share information about the things our families like to do.
Readers learn how this simple machine makes it easier to lift, lower, and open things. They learn the three types of levers: first-class, second-class, and third-class. By the end of the book, readers know the difference between complex and simple machines and how levers are used in everyday life to make work easier.
Amazing magnets are everywhere--on the refrigerator and inside machines and toys. Even Earth is a giant magnet! A magnet can be strong enough to lift a car. But magnets work only in a certain way. This simple, colorful book explores the attractive power of magnets.
Readers learn how this simple machine makes it easier to keep objects locked together. By the end of the book, readers know the difference between complex and simple machines and how screws are used in everyday life to make work easier.