Algorithms
An algorithm is a set of rules, steps or instructions to accomplish a task. Have a look at the videos on the left for more information. Start introducing the term algorithm early e.g. "We're going to write a set of instructions or algorithm..." or "Can you work out what the rule or algorithm might be for this pattern?".
Computers use algorithms but you don't necessarily need a computer to write or carry out an algorithm. Many digital technologies can make performing an algorithm faster and easier. Algorithms are used to write computer programs, they tell the computer what to do. 

Resources:
Algorithms infographic  based on the Australian curriculum but still useful. Pixar in A Box  a collaboration between Pixar and the Khan Academy  teaches maths, science (including use of algorithms) and coding for Film Animation. Activities for all ages but most from around age 8 to adult. BBC  Algorithms activities for juniors CS Field Guide  Algorithms BarefootCAS has tutorials based on the English CS curriculum. Register to view the sample resources such as this one on Algorithms. Algorithms can also be represented as flowcharts  see here for more examples. 
Algorithm Examples
Library Book Sorting Algorithms Knitting Patterns  an Algorithm Key Word Search Google Search Algorithms Netflix Algorithms Facebook algorithms 
2017