School Subject (according to ISCED):
    00 - Generic programmes and qualifications
    002 - Literacy and numeracy
    05 - Natural sciences, mathematics and statistics
    054 - Mathematics and statistics
    0541 - Mathematics

Level of Education: ISCED 1 - Primary level

Country of Use: Spain

School Subject (according to ISCED):
    00 - Generic programmes and qualifications
    002 - Literacy and numeracy

Level of Education: ISCED 1 - Primary level

Country of Use: Uruguay

School Subject (according to ISCED):
    05 - Natural sciences, mathematics and statistics
    051 - Biological and related sciences

Level of Education: ISCED 1 - Primary level

Country of Use: Uruguay

School Subject (according to ISCED):
    05 - Natural sciences, mathematics and statistics
    053 - Physical sciences
    0532 - Earth sciences

Level of Education:
    ISCED 2 - Lower secondary level
    ISCED 3 - Upper secondary level

Country of Use: Belgium

School Subject (according to ISCED):
    02 - Arts and humanities
    022 - Humanities (except languages)
    0221 - Religion and theology

Level of Education: ISCED 1 - Primary level

Country of Use: Spain

School Subject (according to ISCED):
    05 - Natural sciences, mathematics and statistics
    051 - Biological and related sciences

Level of Education: ISCED 1 - Primary level

Country of Use: Spain

School Subject (according to ISCED):
    05 - Natural sciences, mathematics and statistics
    053 - Physical sciences
    0532 - Earth sciences

Level of Education:
    ISCED 2 - Lower secondary level
    ISCED 3 - Upper secondary level

Country of Use: Portugal

School Subject (according to ISCED):
    02 - Arts and humanities
    022 - Humanities (except languages)
    0222 - History and archaeology

Level of Education:
    ISCED 2 - Lower secondary level
    ISCED 3 - Upper secondary level

Country of Use: Spain

School Subject (according to ISCED):
    03 - Social sciences, journalism and information
    031 - Social and behavioural sciences
    0312 - Political sciences and civics

Level of Education: ISCED 1 - Primary level

Country of Use: Spain

School Subject (according to ISCED):
    00 - Generic programmes and qualifications
    001 - Basic programmes and qualifications
    02 - Arts and humanities
    021 - Arts
    0214 - Handicrafts
    04 - Business, administration and law
    07 - Engineering, manufacturing and construction
    08 - Agriculture, forestry, fisheries and veterinary

Level of Education:
    ISCED 2 - Lower secondary level
    ISCED 3 - Upper secondary level

Country of Use: Spain

School Subject (according to ISCED): Not specified

Level of Education: ISCED 0 - Pre-primary education

Country of Use: Spain

School Subject (according to ISCED):
    03 - Social sciences, journalism and information
    031 - Social and behavioural sciences
    0312 - Political sciences and civics

Level of Education: ISCED 1 - Primary level

School Subject (according to ISCED): Not specified

Level of Education: ISCED 1 - Primary level

Country of Use: Belgium

School Subject (according to ISCED): Not specified

Level of Education: ISCED 0 - Pre-primary education

Country of Use: Spain

School Subject (according to ISCED):
    05 - Natural sciences, mathematics and statistics
    051 - Biological and related sciences

Level of Education:
    ISCED 2 - Lower secondary level
    ISCED 3 - Upper secondary level

Country of Use: Spain

Level of Education:
    ISCED 2 - Lower secondary level
    ISCED 3 - Upper secondary level

Country of Use: Portugal

School Subject (according to ISCED):
    02 - Arts and humanities
    023 - Languages
    0232 - Literature and linguistics

Level of Education: ISCED 1 - Primary level

Country of Use: Spain