Gradient of the tangents to the natural logarithmic function Whiteboard exercise Play

Graphs of natural logarithmic functions Student activity Play

Graphs of natural logarithmic functions Whiteboard exercise Play

Habitat and lifestyle of the Roman snail (Helix pomatia) Illustration Play

Habitat loss Simulation Play

Hot and dry habitats Student activity Play

How habitats vary Student activity Play

How human activities change the natural environment Whiteboard exercise Play

How human activities change the natural environment Student activity Play

How humans change the natural environment Simulation Play

How humans depend on the natural environment Student activity Play

How humans depend on the natural environment Whiteboard exercise Play

How humans shape the natural environment Whiteboard exercise Play

How humans shape the natural environment Student activity Play

How many different divisors does a natural number have? A more difficult problem Student activity Play

Human dependency on the natural environment Slideshow Play

Hydrocarbons found in natural gas Illustration Play

Immunity Student activity Play

Integers Whiteboard presentation Play

Integers Class activity Play

Integral of the natural logarithmic function Animation Play

Interdependencies between organisms Student activity Play

Interdependencies between organisms Whiteboard exercise Play

Isotopes of natural magnesium Whiteboard exercise Play

Laws of evolution and speciation Whiteboard presentation Play