Dear Ms Lena,
We would like to say a BIG Thank You for your great support and guidance for Zheng Zhan.
Zheng Zhan had been very weak in Mathematics. I was very surprised when his grades improved tremendously from 60+ to 90+. Now he is able to make progress in his mathematical skill and ability and also get into the best class [in his school].
I would highly recommend other parents to Elucidation! Thank you very much!