When Eaton was 15 months old I introduced him Montessori version of puzzles. That was the easiest puzzle I created from a picture of our family. I cut a picture in half. For the presentation I put them in order very close to each other for Eaton to see the big picture. He needed to slide one half next to another. More difficult version was when I cut pictures in 3 pieces and presented them upside down. At 17 months I presented Eaton real puzzle.
I wasn't sure when he would be ready for a transition to a more difficult puzzle so I simply put the puzzle box on a shelf. One day Eaton decided to work with them
Few days ago I made a video with more difficult puzzle- 5 pieces. Sometimes I need to hold pieces he already put together but besides that, he sees the whole picture in front of him.
One time I read about a kid who wasn't interested in puzzles. That's why I think it's a great idea to present puzzles with a topic that baby is interested in at that time. My Eaton loves trucks, diggers, bulldozers, buses etc. That's why I bought these puzzles for him.
Have a wonderful day everyone!