Beginner to Advanced Toys

Every toy category has a ladder inside it. Puzzles go from single-piece knob boards to five-hundred-piece landscapes; building sets go from chunky blocks to gear-driven machines; science kits go from colour mixing to controlled variables. Buying the wrong rung is the most common reason a toy gets abandoned in a week.
These guides map those ladders rung by rung, with the specific signal that tells you a child has outgrown one level and is ready for the next — not just “they seem bored”, but what to watch for during play. They also flag the places where a jump is too steep and an intermediate step is worth the shelf space.
Useful starting points: the science kit progression and what comes after beginner puzzles.