Kevin Large our Instructor Trainer - runs his own training company and hosts a YouTube channel with some associated 'interesting' content. You may use these for your own personal development as well as share them with students during networking lessons.
IPv4 Subnetting 1 - Laying the foundations
IPv4 Subnetting 2 - Classful addressing
Packet Tracer Lab 1 - Devices and connections
Packet Tracer Lab 2 - Trunk Links, VTP, VLAN's and Sub-interfaces
Packet Tracer Lab 3 - IP Addressing (Static and DHCP)
Packet Tracer Lab 4 - Wireless, Connecting to the Internet, Web Servers and DNS
Packet Tracer Lab 5 - Basic Security
Packet Tracer Lab 6 - Remote Access VPN