Subjects: MATHEMATICS education (Elementary); TEACHING aids; CURRICULUM
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Subjects: CUNEIFORM writing; SUMERIAN cuneiform inscriptions; LESSON planning
Subjects: LESSON planning; CURRICULUM; TEACHING
Subjects: LESSON planning; STUDY & teaching of fractions; GEOMETRY education
Subjects: MATHEMATICS education; LESSON planning; ACTIVITY programs in education
Subjects: MATHEMATICS education (Primary); LESSON planning; FRACTIONS
Subjects: TEACHERS; ELEMENTARY school teachers; SOCIAL change