Descending minor and major third

[originalvonster]

I'm really struggling with identifying these when they are descending, any tips? I particularly struggle when they are in a different octave to the interval example songs I am using (Hey Jude and Swing Low).

[Quentin]

Descending 3rds can be tricky as Major 3rd descending sounds like the beginning of a minor triad played descending (and vice-versa with a minor 3rd). So when in doubt, you could try to sing the rest of the triad.