"Writing an algebraic expression is like writing a sentence in maths instead of English.You do this by assigning letters to numbers. An algebraic expression is a set of instructions on how to perform a calculation."
METAMIA is a free database of analogy and metaphor. Anyone can contribute or search. The subject matter can be anything. Science is popular, but poetry is encouraged. The goal is to integrate our fluid muses with the stark literalism of a relational database. Metamia is like a girdle for your muses, a cognitive girdle.