Three chords and a tune everybody knows, so you will hear immediately when it starts working. Our chart has it at 100 beats a minute.
leaving on a jet plane
The new idea: practise only the part you miss
Most people practise by starting at the top and playing until they mess up. That means they get very good at the beginning and never get better at the part that is actually going wrong.
Play along once. Notice the moment you always miss. For most people here it is getting to C on time, or the D that comes along quickly after it.
Now take just the two chords on either side of that moment. One minute of nothing but that change. Then play the song again. That one minute is worth more than five times through from the top.
A trick for G to C
With the G in the diagram above, your third finger goes from the high E string over to the A string, your second finger comes down to the D string, and your first finger drops to the B string. Move them as one shape instead of finger by finger, and keep your strumming hand going through the change.
You're done when: you can sing or hum along while playing, even badly. That is how you know your hands have stopped needing all your attention.