As my daughter is studying in the international kindergarten, most of the kids are EAL(English as an addtional Language) students.For EAL and NON-EAL students, the vocabulary recognition(breadth and deepth )is the most distinguish part among EAL and NON-EAL.The kindergarten is using Total Physical Response (which is an aspect of the multiple intelligence theory ) and other methods.For knowing which method will enhance the vocabulary recognition,should I use the postpositivism to support my research? For the vocabulary recognition result, do you have any suggestion about how to design a test that can examined vocabulary recognition to make sure this resarch has the validity and reliabilty.And also I want to ask which language teaching method(TPR、Proroject -based language Teaching etc.) is appropriate for preschooler?