Font and colour of text
Select the text you wish to change.
On the Home tab Format on the menu bar
click Font to change the font, font size, font style and colour. It will change just the text selected.
Bullets
To change the bullets select the required text,
Click on the Format menu
Click on Bullets and Numbering.
For More bullet options Select Bullets and Numbering
Click customise to insert a symbol/character as a bullet.
Colours and Lines
To alter the colour and fills of objects:
Select the object/text you wish to change.
Click on the Home tab.
Click on Theme Colors. Select a color.
Scroll further down to change the weight or thickness of the line.
Click on the little arrows as indicated and alter as required.
Creating your own template
To change the colours and fonts on all the slides:
Click on View
Click on Slide Master
Alterations made will change all slides in the presentation.
To insert a school badge or graphic on all slides, insert and position it on the Master slide.