• This machine is an excavator. Ask: What do you think this machine does? An excavator is designed for digging and clearing dirt to prepare for construction.
• Identify the parts of the excavator. Say: The bucket scoops up the dirt. The teeth on the end of the bucket are sharp so they can dig into the ground. The arm of the machine lifts and carries the dirt from one place to the other.
• Ask: Would you like to operate an excavator? What kind of a hole would you dig?