Early childhood pioneer Maria Montessori said "Play is the work of children". \
Instead of commercial toys, nature resources such as plants, sand, water and eco-shrimps make children learning more meaningful and fun. Parents are still concerned about academic work like worksheets. There is a new shift to play in pre-school education as studies have shown that children become more innovative and creative when left to experiment and play instead of being a vessel for filling up academic knowledge.
Eco shrimps appear to be most popular with some Singapore teachers in 2015. They are cheap and easy to maintain.