Differentiation rules (2) Class activity Play

Digestion in the alimentary canal Illustration Play

Digestion of carbohydrates; proteins and lipids Student activity Play

Direct proportionality models Student activity Play

Drawing the straight line given in a standard form Whiteboard exercise Play

Energy flow and food chains Student activity Play

Energy in a food chain Student activity Play

Energy in a food chain Whiteboard exercise Play

Energy losses in a food chain Slideshow Play

Equation of a straight line Student activity Play

Equation of a straight line Whiteboard presentation Play

Equation of a straight line Class activity Play

Equation of a straight line Whiteboard exercise Play

Equation of a straight line Class activity Play

Equation of a straight line Whiteboard exercise Play

Equation of a straight line Whiteboard presentation Play

Finding a gradient of a straight line given in general form Whiteboard exercise Play

Finding gradients of straight lines Animation Play

Finding the slope of a straight line Animation Play

Finding the  x-intercept of a linear function Whiteboard exercise Play

Finding the  x-intercept of a linear function Student activity Play

Flow of energy through a food chain Slideshow Play

Food chain Student activity Play

General form of the equation of a straight line Student activity Play

General form of the equation of a straight line Whiteboard exercise Play