Both. It doesn't matter which you use.
A globe provides a more accurate representation of the Earth's curved surface and the relative sizes of continents. It also allows for visualizing the Earth in three dimensions, making it easier to understand spatial relationships and distances between locations.
Because the Earth is round and a map is flat you can't show all the countries on a map without making some distortion, usually in their size. By using a globe, which is also round, all of the earth's countries and oceans etc can be shown without distorting their size or location.
A flat map exaggerates certain countries close to the poles. A globe shows the bodies of land in their actual size. For example: Greenland looks huge on a flat map, but looks much smaller (its actual size compared to the other countries) on a globe. Next, lines of longitude and latitude are more accurate on a globe.
A globe
mapscale
A earth globe is best, and with that said google maps is a free one that is close at hand.
a globe
While not an actual map, facts and figures comparing the two countries are available here: alldownunder.com/australian-facts/compare-size.htm
The shapes of the Countries on the globe are all shown in the same scale (different areas). However, the equal-area projection map shows the Countries with different scales, that way they can easily be seen (same areas).
Scale
A map of Australia and New Zealand can be found in an Atlas. A map of these two countries can also be found on a globe.
Depending on if the map is a global one, they both show the world on them. They show major and capital cities of countries and where they are. Continents and oceans, too ...