Tap the biggest thing Sixten found — but watch out, sometimes he wants the smallest.
Comparing size is seriation, and children can do it before they can count — which makes this one of the gentlest games here. Every item in a round is the same drawing at a different scale, so size is genuinely the only difference; comparing a big leaf with a small acorn would be a question about pictures instead. Two items to start, up to four, with the sizes creeping closer together so a glance stops being enough. From level two Sixten sometimes asks for the smallest, so it can't be won on autopilot.
Practises: Sizes & ordering · with Sixten the Squirrel