Many pupils are taught procedures before they can read the objects those procedures act on.
A pupil may learn to collect like terms, expand brackets or solve equations in a familiar format, but still be unsure what a term is, what a factor is, what the equals sign asserts, or how brackets create nested structure.
When those foundations are fragile, algebra becomes a set of disconnected tricks. SPI Maths makes the hidden grammar visible so teachers can identify the precise idea that needs attention.