At first this diagram appears simple to describe. However, the caption and the labeling make it more difficult. For example, the term "upper view" is unclear and the television in the caption is ...

Like any image, there are many effective ways to describe this math diagram and our survey participants made suggestions to add or change a word here or there. What they agreed upon was the use of ...

Si.427 is the oldest known example of applied geometry, and researchers say it was compiled by a Babylonian land surveyor. Si.427 dates from the Old Babylonian (OB) period from 1900 to 1600 BCE.

Justin K. Dimmel, Patricio G. Herbst, The Semiotic Structure of Geometry Diagrams: How Textbook Diagrams Convey Meaning, Journal for Research in Mathematics Education, Vol. 46, No. 2 (March 2015), pp.