Making sense of our world, whether planning or comparing, we need to be able to measure and understand measurement. Focusing on measurement in 1, 2, and 3 dimensions; measurement is the basis for creating or identifying a frame of reference; from which we can project into the future.
Prior Knowledge & Skills
We need to know our number basics including arithmetic and an introduction to shape is useful. Length, area and volume ties in with shape and position and can be practiced in parallel.
We can relate to the real world, probably like few other fields of mathematics, by physically getting our hands dirty and using the tools of measurement. Develop a sense for estimating distance and size. Relate these measurements with weight, density, mass and speed. Consider different units and dimensional analysis, fundamental to engineering understanding.
Going to the shops we need to know about size - length of wallpaper - volume of cola. Without a comprehension of measurement we cannot scope our existence in the world and universe. The physical trades demand precise measurement defining quality and workmanship. Volume of medical doses can be the difference between life and death.
Get an idea of measurement from this PowerPoint: