Research article    |    Open Access
International Journal of Progressive Education 2020, Vol. 16(2) 42-55

Examination of Secondary School Students' Ability to Transform among Chemistry Representation Levels Related to Stoichiometry

Ayşegül Tarkın Çelikkıran


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France 84 82
Unknow 3 2
Turkey 51 35
Indonesia 20 12
Russian Federation 9 9
India 8 8
Philippines 13 7
China 8 7
Thailand 8 6
Germany 4 3
Malaysia 4 3
Iran 3 2
South Africa 3 2
Singapore 3 2
Ethiopia 3 2
Zambia 1 1
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Croatia 2 1
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Rwanda 2 1
Sweden 1 1
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Ghana 3 1
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Israel 1 0
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