Abstract The problem of this research was to analyse the effect of Van Hiele learning theory to learning outcomes of elementary school students at grade V in SDN 34 Pontianak Kota. The method of this research is experimentaland the design is Quasy Experimental with Non-equivalent Control Group Design. The population of this research was 132 Students from class V A, V B, V C, and V D of SDN 34 Pontianak Kota. In this research the methods of collecting sample was probalitiy sampling with simple random sampling where students of class V D belonged to control group and students of class V C belonged to experimental group. From the analysis of the data, the average result of post-test of control class was 54,77 and the average result experiment class was 70,33. After conducting t-test (separated variants), it was found that tcountwas 5,0323 and the ttablewith dk 64 and significant level (= 5% was 1,9987. The finding showed that tcount> ttable. So alternative hipothesis (Ha) was accepted which means that there were significant influence of Van Hiele’s learning theory. From the calculation of effect size (),it was found that was 1,29 with relatively high criteria. The result of this study was concluded that Van Hiele’s learning theory gave high influences to the learning outcomes of elementary school students at grade V SDN 34 Pontianak Kota.  Keyword : Influence, Van Hiele’s Learning Theory, Learning OutcomesÂ
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