Every October my class asks the same question: “Are we doing pumpkin math this year?” The answer is always yes. It’s one of those activities kids remember long after the school year ends, and it covers a lot of math in one happy afternoon.
Getting set up. I ask families to send in small pumpkins if they can, and I pick up a few extras so every group has one. Each group of four gets a pumpkin, a recording sheet, a measuring tape, string, and a tray.
Station 1: Estimate and measure. Kids guess how big around their pumpkin is, then use string to measure and compare it to a measuring tape. The gasps when a guess is way off are the best part.
Station 2: Heavy or light? Using a balance scale, groups compare their pumpkin to classroom objects. “It’s heavier than three glue bottles!” is real measurement thinking.
Station 3: Sink or float? We make predictions and test them in a tub of water. Spoiler: pumpkins float, and kids are always shocked.
Station 4: Count the seeds. This is the messy one. I scoop the pumpkins ahead of time and save the seeds in bags. Kids group seeds into tens on a ten-frame mat, then count by tens and ones. It’s place value they can touch.
Wrapping up. We gather to compare results. Which pumpkin had the most seeds? Did the biggest pumpkin have the most? (Often not!) This leads to great talk about predictions and evidence.
A few tips from experience:
- Cover tables with paper before you start. Trust me.
- Assign group jobs: recorder, measurer, materials manager, and reporter.
- Keep wipes handy. Pumpkin goo gets everywhere.
- Have a no-pumpkin plan. Paper pumpkins with bags of seeds still work beautifully.
Pumpkin math reminds me why I love teaching young kids. They’re curious, they want to touch everything, and they learn best when they do.
My pumpkin math recording sheets and ten-frame mats are in the Shop if you’d like to try this with your class. Happy measuring!