To learn Odd times it's best to divide the measure up. So for a 5/4, practice a bar of 3 followed by a bar of 2 (counting 1,2,3,1,2); then do the reverse (counting 1,2,1,2,3). Which type used(3+2 or 2+3) will depend on the song.
For example for "Take Five", it is a 3+2, so to start with, you could count:
one two-a three one two;
and once you get the hang of it, you can even count:
one two-a three four five.
Of course, for "two-a", I mean the standard jazz ting-a-ling (dotted eight note followed by sixteenth note).