The Camera Connection Kit USB component attaches to the iPad and the iPhone connects to this through the USB cable. The iPad should recognize the iPhone as a Camera ans show the photos on the iPhone. You can then import the photos you want.
Other ways to do this:
You can directly transfer photos and videos via WiFi between iPhone, iPad, PCs, and Macs with an App like Photo Transfer.
See: https://itunes.apple.com/us/app/photo-transfer-app-easily/id365152940?mt=8
Or you can upload the photos and videos to the Dropbox service using the Dropbox App on the iPhone, iPad, PC, or Mac and download them to the another device using the Dropbox App on that device.
See: https://itunes.apple.com/us/app/dropbox/id327630330?mt=8