Theodor Haagaas, Date of Birth, Place of Birth, Date of Death
TweetTheodor Haagaas
Norwegian private school owner and educator
Date of Birth: 
Place of Birth: Tistedalen, Eastern Norway, Norway
About Theodor Haagaas
- Theodor Christian Petersen Haagaas (15 June 1873, Tistedalen – 25 December 1961, Oslo) was a Norwegian mathematician and private school owner.
- He was a co-owner of Frogner School and Nissen's Girls' School (1913–1918) and founder, owner and headmaster of the Haagaas School, a private gymnasium at Frogner, Oslo that existed 1915–1955.
- He is also known for the widely used Haffner og Haagaas series of textbooks in mathematics, which was published between 1925 and 1979 in numerous editions.
- He received the King's Medal of Merit in Gold in 1949.
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