🌉 Index-Card Bridge

🔊Can one index card hold a hundred pennies? With the right fold, it can!

⏱️ 45 minutes💲 about $1●●○Grades 3rd–6th🌉 Towers & Bridges

• 👶 Small parts! Keep them away from little brothers and sisters.

Gather first

• Index cards · 6
• Some books · 4
• Pennies · 100
• Paper cups · 1 small
• 🩹 Tape

The big idea: Folding paper makes it stiff, so it holds far more.