Scale reading is an important numeracy skill. It also helps with ideas relating to the density of the number line. To make readings in between labelled points on a scale, students need a sound understanding of decimal notation.
The following examples illustrate various component skills underlying
scale reading:
(i) students must not assume the numbers go up one for every tick mark;
(ii) proportional reasoning is involved;
(iii) students need to understand the order of decimal numbers (e.g. to
see why 0.11 follows 0.1).
Write the number indicated by the pointer in the boxes provided:
1.
2.
3.
4.
