tags: number theory Home tags: number theory Search Tags: 5.NF.B.5.a, Recipes, proportional reasoning, cyclones, median ages, under construction tags: number theory We found 1 post available for you Really old Number Sense Math and Social Studies Tom Lehrer is a singer, songwriter, satirist, pianist and mathematician who has written some wonderful songs. In 1959 he wrote a song called "New math". At that time, much of mathemati... 6th 7th 8th HS binary octal hexadecimal bases enrichment number theory Display 1 - 1 Of total 1