The famous Singapore Math for children in primary schools is based on visual models.
The Singapore Ministry of Education has published a new 2013 Math syllabus for primary and secondary schools, which will roll out in examinations within 4 to 6 years. Todate only Primary 1 and Secondary 1 Math syllabuses are published here:
http://www.moe.gov.sg/education/syllabuses/sciences
Mathtuition88 