lesson
Order changes the result
1 · Learn
A sequence is a set of instructions in order. In a music program, play a drum, wait one beat, then play a bell gives a different result from playing both together.
First plan what the listener should hear. Then choose commands your approved tool supports. A written plan is an algorithm; the implemented instructions are the program.
2 · Worked example
My algorithm is clap, pause, tap. I check that the program has those actions in that order rather than relying on a name such as 'nice tune'.
3 · Your turn
A sequence is bell, drum, bell. What is its second sound? Would drum, bell, bell sound in the same order?
Check your answer
The second sound is drum. No: moving drum to the start changes the order.
4 · Apply your learning
In an adult-approved sound tool, create a three-sound sequence and compare playback with a written plan. Keep volume comfortable.
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