Both my kids 9 and 5 yr old learn Spoken Tamil from US. They always get excited to attend the classes and learn to speak Tamil in a fun way. Their teacher is very friendly, adaptable and encourage the kids to speak Tamil at all time during and after outside classes at home. My son now practices writing letters and the vocabulary of kids has improved.
Both of them like to point at things and tell what it is in Tamil.
I highly recommend ilearntamil.com to learn Tamil language.