Useful notes from todays lesson.

Auto focus uses infrared beams to work out the focus difference.
The light bounces off the tree and into the lens.

The shutter is how fast the shutter opens and closes to let light in.
An aperture is how big the opening of the lens is to let light in. Its like your eye pupils

The macro setting is useful when you want to glimpse a close shot very close, using the flower button.

( !! THE IMAGE ABOVE IS HOW A MACRO SHOT LOOKS LIKE !! )

The shutter speed is usually expressed fraction of a second.
1/250th of a second is fast
1/30th of a second is slow - may I say that is the quickest picture you can take without a tripod. (you can get many tripods, the ones that stand on 3 legs and maybe the gorilla pod comes in handy)

In light conditions you need to make your camera have a slightly closed aperture so less light gets in. In dark conditions make the camera have a more open aperture so more light gets in. Similar to your eye pupils.