Video narration
Kitty's orange paws patter through the cozy playroom, searching for a hidden square. There it is-a colorful building block! Help Mama Cat check it. Start at the top: one side, two, three, four. Four sides! But wait-does every four-sided shape make a square? Not quite. Here's the special rule: all four sides must be the same length. Four equal sides make a square. Now Kitty tests the room. The sunny window has four matching sides: square! A dotted cracker on a plate-count with us: one, two, three, four, and they match. Square! Next, the shiny gift box: its front face has four equal sides. Square! Kitty's block taught us what to look for, not just what something looks like. Count four sides, then check that they're all the same. Four equal sides make a square. Look around your room-can you find another square?