This great little page describes/uses examples to show the three difference approaches (Add-on, Integration, and Immersion) to First Nations content in the classroom in an easy to understand way.
The Add-on section is certainly the most thorough as it includes a description, a “best to use when” section, a look at the strengths, and the weakness and then a number of examples. However the examples for both the Integration and Immersion sections make them quite easy to understand.