If you're looking for a great resource to learn about Australia, here's an awesome one that you can download for FREE from the Australian embassy website. "Tell Me About Australia" is available in a 48 page pdf file. This resource for school children K-8, includes facts on geography, unique wildlife & the environment, history, aboriginal culture & natural wonders, government, education & sports.
It's Australia, 1850s, A Unit about the Gold Rush - This Australian Curriculum History inquiry unit focusses on the Gold Rush in Australia. Includes migration, perspectives and can be integrated with English. Includes 13 activities, resource list, an appendix and a powerpoint for IWB to support teaching.