Aish Achwat Saleha Pengarang

The aim of this research was to know whether there is a significant effect of using ABCD flashcards on students' vocabulary mastery after applying ABCD flashcards of students at TK. Islam Al-Zihan Kab. Tangerang. This research is quantitative method. There are 30 students divided into 2 classes, the researcher use one class as the experimental class and another class as the control class as the sample which taken non random by using Quasi-experimental research Post-test only non-equivalent control group design. Students' test were used to collect the data from two post-test at the end of treatment by the researcher. The hypotheses data was tested using formula of t- test, it was known that between experimental and control class in vocabulary mastery got tcount>ttabel ( 3,878 > 2,048 ) with sig = 0,001 < 0,05, so it can be concluded that Ho is rejected and Ha is accepted. it means there is significant difference used ABCD flashcards on the students' vocabulary mastery TK. Islam Al-Zihan Kab. Tangerang. because the condition of students in experimental class are funduring the learning. Besides that they more easily to Improve their vocabulary mastery by using flashcards than control class only used conventional method.