Finding the volume of a frustum of a cone Whiteboard exercise Play

Fish – jawless; cartilaginous and bony Student activity Play

Frustum of a cone Student activity Play

Frustum of a cone as a solid of revolution Animation Play

Geometrical approach to the parabola Student activity Play

Gymnosperms Student activity Play

Gymnosperms – seed plants with sporophyte and gametophyte generations Student activity Play

Human eye – anatomy Student activity Play

Life cycle of the pine Illustration Play

Life processes in plants Student activity Play

Net of a cone Animation Play

Neural pathways for vision Animation Play

Photoreceptors Student activity Play

Prisms Student activity Play

Pythagorean theorem and trigonometry in 3-D Whiteboard presentation Play

Pythagorean theorem and trigonometry in 3-D Class activity Play

Regular polyhedron Animation Play

Relationship between volumes of similar solids Student activity Play

Relationship between volumes of similar solids Whiteboard exercise Play

Reproductive organs of gymnosperms Slideshow Play

Retina Illustration Play

Retina structure Animation Play

Riddles about 3-D shapes Whiteboard exercise Play

Riddles about 3-D shapes Student activity Play

Rods and cones Illustration Play