School Subject (according to ISCED):
    00 - Generic programmes and qualifications
    002 - Literacy and numeracy
    0021 - Literacy and numeracy

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

School Subject (according to ISCED):
    00 - Generic programmes and qualifications
    002 - Literacy and numeracy
    0021 - Literacy and numeracy
    05 - Natural sciences, mathematics and statistics
    054 - Mathematics and statistics
    0541 - Mathematics

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

School Subject (according to ISCED):
    00 - Generic programmes and qualifications
    002 - Literacy and numeracy
    0021 - Literacy and numeracy

School Subject (according to ISCED):
    00 - Generic programmes and qualifications
    002 - Literacy and numeracy
    0021 - Literacy and numeracy

School Subject (according to ISCED):
    00 - Generic programmes and qualifications
    002 - Literacy and numeracy
    0021 - Literacy and numeracy

Level of Education:
    ISCED 1 - Primary level
    ISCED 1 - Primary level
    ISCED 1 - Primary level

School Subject (according to ISCED):
    00 - Generic programmes and qualifications
    002 - Literacy and numeracy
    0021 - Literacy and numeracy

School Subject (according to ISCED):
    00 - Generic programmes and qualifications
    002 - Literacy and numeracy
    0021 - Literacy and numeracy

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

Level of Education:
    ISCED 1 - Primary level
    ISCED 1 - Primary level
    ISCED 1 - Primary level

School Subject (according to ISCED):
    02 - Arts and humanities
    023 - Languages
    0231 - Language acquisition

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

School Subject (according to ISCED):
    00 - Generic programmes and qualifications
    002 - Literacy and numeracy
    0021 - Literacy and numeracy

Document Type: Textbook

School Subject (according to ISCED):
    00 - Generic programmes and qualifications
    002 - Literacy and numeracy
    0021 - Literacy and numeracy

Level of Education:
    ISCED 1 - Primary level
    ISCED 1 - Primary level
    ISCED 1 - Primary level

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

School Subject (according to ISCED):
    00 - Generic programmes and qualifications
    002 - Literacy and numeracy
    0021 - Literacy and numeracy

School Subject (according to ISCED):
    00 - Generic programmes and qualifications
    002 - Literacy and numeracy
    0021 - Literacy and numeracy

School Subject (according to ISCED):
    00 - Generic programmes and qualifications
    002 - Literacy and numeracy
    0021 - Literacy and numeracy

Level of Education:
    ISCED 1 - Primary level
    ISCED 1 - Primary level
    ISCED 1 - Primary level

School Subject (according to ISCED):
    00 - Generic programmes and qualifications
    002 - Literacy and numeracy
    0021 - Literacy and numeracy

School Subject (according to ISCED):
    00 - Generic programmes and qualifications
    002 - Literacy and numeracy
    0021 - Literacy and numeracy

Level of Education:
    ISCED 1 - Primary level
    ISCED 1 - Primary level
    ISCED 1 - Primary level

School Subject (according to ISCED):
    00 - Generic programmes and qualifications
    002 - Literacy and numeracy
    0021 - Literacy and numeracy

Level of Education:
    ISCED 1 - Primary level
    ISCED 1 - Primary level
    ISCED 1 - Primary level