Continuers scales better than Beginners courses. For example, Japanese Continuers scales better than Japanese Beginners. If you are good at Languages, consider Continuers course over the Beginners course. Latin Continuers and Latin Extension are the best scaling courses for Languages.

What are the best scaling subjects?

Physics and Chemistry are the highest scaling sciences and scale significantly better than Biology, mainly because they contain a significant portion of numerical calculations.

Does French Continuers scale well?

Scaling is always relative. However, French Continuers scales very well in relation to the other subjects. A high band 5 and up will do well to increase your ATAR.