BIO Classroom provides free educational materials designed to encourage the use of biography in the classroom and help students explore the lives of those who have made an impact on our world.
From the website:
"Pora Ora is a FREE 3D world designed to make learning fun, where primary school children are rewarded for completing educational tasks that are linked to the national curriculum. The educational content is embedded in games and quests throughout the world, so children really are learning while playing. "