# Climbing the Walls

How do 6-foot-tall people build 60-foot tall buildings? Or 600-foot-tall buildings? Our fan Calvin T. asked about one cool tool that helps us: the “scaffolding” around buildings. Scaffolding is a metal frame that stacks little rectangular floors with sets of stairs. That lets people walk up and reach any part of a tall building. It’s much safer than a wobbly ladder, and lets you move side to side. That way workers can stack bricks, put windows in place, and paint the building. Over the years people also need to repaint the building and wash the windows, so they bring out the scaffolding again. What’s crazy is how high these people stand on this tall wobbly thing. Think about the highest place you’ve been, then imagine standing outside in the wind at that height and trying to wash a window!

Wee ones: How many stories tall is your home? Talk about it with a grown-up – and you can climb any stairs together to check it out!

Little kids: If each story, or floor, of a building is 10 feet tall, how tall is a 2-story building (with a flat roof)?  Bonus: If you counted up the height of a 6-story building by 10s, what numbers would you say?

Big kids: If a painter climbs up 2 12-foot stories, and he’s 6 feet tall and can reach another 2 feet above that, how high on the building can he paint?  Bonus: If you stand on the 3rd level of scaffolding where every story is 11 feet, are your feet higher or lower than that paintbrush?

The sky’s the limit: If one painter is 142 feet in the air and another is 86 feet in the air, and you climb up halfway between the two, how high are you?