Less or more

Our kids need to understand the term 'less than' and 'more than'
Hi kids, would you mind to tell me some real life problems using those term, please?
In my own language (Bahasa Indonesia), I usually hear someone said:
Usia kakak saya dua tahun lebih tua dari usia Arif.
Please think what languages do you usally use when comapring your weight, your tall and so on.
Tell me why these words 'less than' or 'more than' are important for us.