Beginning readers will explore how hammers pound in and pull out nails. A back matter spread explains how hammers are one kind of simple machine: a lever.
An introduction to teaching suggests some of the things teachers may do to help people learn, from welcoming students to class and explaining things to leading pupils in singing.
This beginning reader series describes the job duties of familiar occupations. Vibrant color photos correspond directly with each page's simple text to reinforce concepts and vocabulary.
Curious readers will discover how screwdrivers tighten screws using different kinds of tips. A back matter spread explains how screws are simple machines used to fasten objects together.