Polyrhythm (or cross rhythm) 5 : 3 + ticks at 15 notes to a measure - with Bounce Metronome Pro
Channel: robertinventor
Date: 2012-02-17

See http://bouncemetronome.com/features/pro/polyrhythms you can use Bounce Metronome pro to play any polyrhythms including this one. 

If new to polyrhythms, first try following one of the bouncing balls say the blue one with one hand, and try to tap exactly on the beat. Try to hit so exactly that the sound of your tap merges with the metronome or hides it.  (It can help to tap with something bouncy as the bounce action helps you keep a regular rhythm - drum and drumstick or tap the table with a pen or whatever you have to hand).

Now follow the other red ball with your other hand. Now try playing both at once.  Focus on one hand and the other and try to make sure both rhythms are completely even and regular and exactly on the beat with the metronome.