Teaching With Books
Skateboards were invented by surfers. In the 1950s, California surfers got frustrated when the weather and waves were bad for surfing. So they began nailing the bases of roller skates to wooden planks. “Sidewalk surfing” was born.
One of the slowest animals in the world is the three-toed sloth. Since a sloth’s legs and feet are made for hanging on trees, their hind legs are especially weak. Their long claws also make it difficult for them to walk on land. That's why they sleep hanging from branches.
Complete each sentence with a prefix from the box.
1. The scientists ___covered the foundation of an earlier civilization.
2. How can you find anything when your desk is so ___organized?
3. The outdoor events were ___scheduled because of the thunderstorm.
Circle the unit of measurement that completes the sentence.
The road race on Saturday is 2.2 miles. That’s about 3.5 ________ [yards, millimeters, kilometers, feet].