This is the easiest weaving pattern and probably the very first taught to anyone interested in weaving.
Starting with the weft strips
Adding warp strips
This activity can be introduced to children when they are around 4. Strips of paper or ribbon can be used too.
There are kits available in the market to teach weaving. Here is one – Loom weaving pot holder
I made this DIY version. Full tutorial here ==>> Felt Cloth Weaving Craft – Educational Craft (Busy Bag)