click the green flag to start -press N key to go to the first slide -press A key to go to slide 2 -press S key to go to slide 3 -press D key to go to slide 4 -press F key to go to slide 5 -press G key to go to slide 6
press the green flag; then press these keys to go to previous slides: -press N to go to the first slide - press H key to go to slide 2 -press J key to go to slide 3 -press K key to go to slide 4 -press L key to go to slide 5 -press M key to go to slide 6
