If it’s disconnected from reality,
it’s not numeracy.

If it’s not meant to make people more self-reliant,
it’s not numeracy.

If large numbers of people can’t do it or can’t understand it,
it’s not numeracy.

Work definition1 : Numeracy is the connection of knowledge, skills and personal qualities needed to deal adequately and autonomously with the quantitative side of the world around you.

Work definition 2: Numeracy is the connection of knowledge, skills and personal qualities needed to deal adequately and autonomously with the quantitative, multidimensional, and structured side of the world around you.
– Kees Hoogland –

My favourite quote: “Number is the tool whereby modern society in its vast and intricate processes of exchange introduces system, balance and economy into those relationships upon which our daily life depends. Properly conceived and presented, neither geography, nor history is a more effective mode of bringing home to the pupil the realities of the social environment in which he lives than is arithmetic.”
McLellan, J. A., & Dewey, J. (1895). The psychology of number and its applications to methods of teaching arithmetic. New York, NY: D. Appleton & Company. (p. xiii)

Started in December 2018.
More information is here.