Unit 4 of 16

Ratios

Multiplicative comparison — the gateway to algebra.

Every topic follows the curriculum standard

Learn→See→Try→Explain→Verify→Challenge→Transfer→Master

Topics in this unit

4 topics. Each card opens a full topic workspace and supports all eight learning actions.

Describing relationships multiplicatively

Not started

Scaling up and down

Not started

Organizing proportional structure

Not started

Visual ratio models

Not started

Study this unit at three depths — current-grade mastery, advanced thinking, and competition mathematics.

Solve grade/course-level problems with full understanding.

Parameters, multiple representations, proof, and modeling.

Non-routine problems and competition applications.