The ratio of two numbers Animation Play

The ratio of two values – more difficult problems Student activity Play

The rational function as a polynomial Animation Play

The Rational Root Theorem Student activity Play

The Rational Root Theorem – finding roots Whiteboard exercise Play

The Rational Root Theorem – proof Animation Play

The Rational Root Theorem – rational coefficients Whiteboard exercise Play

The Rational Root Theorem – rational coefficients Student activity Play

The ratios of more than two quantities Student activity Play

The reciprocal of a rational number Animation Play

The reciprocal of a rational number Student activity Play

The reciprocal of a rational number Whiteboard exercise Play

The relationship between the pressure and the number of gas particles Animation Play

The relationship between voltage and the number of turns in a coil Student activity Play

The relationship between voltage and the number of turns in a coil Simulation Play

The relationship between voltage and the number of turns in a coil Whiteboard exercise Play

The result of a random experiment Whiteboard exercise Play

The result of a random experiment Student activity Play

The result of addition and subtraction of rational numbers Animation Play

The result of division Animation Play

The Sahara and the Gobi Desert Whiteboard exercise Play

The second derivative of an arbitrary rational power of  x Whiteboard exercise Play

The sequence depending on the term's number Whiteboard exercise Play

The sequence depending on the term's number Student activity Play

The sequence in a settled order Student activity Play