guess the number lesson

Learn to create a random number with input from button A.


Math - Pick Random

Prior learning/place of lesson in scheme of work

Learn how to create numbers randomly by using the input of the micro:bit. We will be learning how to create random numbers with input using a local variable as well as simple commands, such as pick number and show number.


input.onButtonPressed(Button.A, () => {})
let x = 0
Math.randomRange(0, 3)


  • learn how to run code when an input button is pressed
  • learn how a variable is a place where you can store data
  • learn how to set the value of a local variable
  • learn how to returns a random number
  • learn how to show a number on the LED screen, one digit at a time (scrolling left to right)
  • learn how to turn off all the LED lights on the LED screen