Algebraic models.

Equations describe relationships between measurable quantities.

Learning outcome: Rearrange a model, identify valid operations and check it by substitution.

Rearrange a model, identify valid operations and check it by substitution. Diagram is schematic and not to scale.

Core ideas

Build the model

equalities and inequalities.

proportional and inverse relationships.

solving for a physical unknown.

Engineering bridge

Where it is used

algebra for physical problems
programming and numerical methods

Original Lilerno structure and wording. Visuals are conceptual, inputs are not a design specification, and practical work requires appropriate supervision.