Having Guests in the Classroom: What Works, What Doesn’t, and Why We Still Do It
Last Tuesday, Mr. Delgado came to talk to my third graders about how buildings stay standing. He’s a structural engineer, a friend of one of my students’ parents, and he walked in carrying a small wooden bridge model and a white hard hat. I’d briefed him the week before: keep it hands-on, don’t talk for more than ten minutes without a break, and expect interruptions. He nodded and said, “I taught Sunday school once. I can handle it.”
He could not handle it.
The kids loved him anyway. The bridge model broke almost immediately—one of the kids breathed on it, basically—and Mr. Delgado laughed and said, “Well, that’s why we build to code.” He showed a video that was way too technical, and half the kids started drawing their own buildings on scrap paper. One boy raised his hand and asked why being an engineer wasn’t just “using a computer,” and Mr. Delgado went slightly red but took the question seriously. Then he pulled out a big cardboard tube and had the kids test which shapes could hold the weight of a stack of books. That part was gold. Thirty minutes after he left, three kids were still building arches out of pencils and rulers.
This is why I keep inviting guests into my classroom, even though it often goes sideways. There’s a particular kind of energy that happens when a new adult walks through the door. The kids sit up straighter. They ask questions they’d never ask me because they don’t already know the answers. They see that the world outside school is full of people who do things—sometimes things they didn’t even know were jobs. Mr. Delgado wasn’t there to deliver a lesson. He was there to be a grown-up who wasn’t their teacher, didn’t need to grade them, and genuinely thought bridges were interesting. That alone was the lesson.
But I’ve learned that bringing someone into the classroom is a bit like hosting a small event every single time. It takes preparation, and not just for the guest. I’ve had to get better at explaining to visitors what third graders can actually handle. The first time I invited someone, I just said, “Come talk about your work for an hour.” That was a disaster. The guest brought a slide deck and spoke for forty minutes while the kids slowly melted into their chairs. I sat in the back, mentally rewriting her script while she kept going. I remember texting a teacher friend afterward: “Why do I keep doing this to myself?”
Because when it works, it works in a way I can’t manufacture. My friend came in once to talk about her job as a nurse. She brought a stethoscope and some rubber gloves and let the kids listen to each other’s hearts. That visit was only fifteen minutes long, but it spiraled into a whole month of the kids pretending to be doctors on the playground. The facts were minor. The memory of getting to wear the stethoscope, that was everything.
I’ve also learned to give guests practical instructions. I now say about three things, and I say them in a friendly but direct way. First, expect to be interrupted. Kids won’t raise their hands patiently for a long time—they’ll just call out, and that’s actually fine, but it can feel rude if you’re not ready for it. Second, bring something they can touch or look at. A map, a tool, a photo, a hat, anything. Third, leave time for questions, because the strangest ones are the best. One guest told me later that the best part was a kid asking if he got seasick on boats. The kid remembered that answer for weeks.
The other thing I do now is invite guests who aren’t experts at all. I used to think the guest had to be impressive—a scientist, an artist, someone with status. But some of the best visits we’ve had were from people who simply showed a small part of their ordinary life. A grandmother came in and taught the kids how to fold paper cranes. She didn’t speak English perfectly, and the kids didn’t mind. They watched her fingers move and tried to copy. She laughed a lot and told them a story about folding cranes with her own children during a long rainy summer. That visit didn’t fit neatly into any curriculum. We didn’t read a book about Japan or write about the symbolism. We just learned a new thing with our hands and listened to an older person’s voice. It was enough.
Parents often ask what they could possibly contribute if they were invited to visit. So many say, “Oh, I’m not interesting. I just do [fill in the blank].” But that’s the wrong measuring stick. A parent can read a book and stop mid-way to say, “I remember when my mother read this to me.” A dad brought his old soccer trophy once, and the kids grilled him about the championship game—turns out they lost, and he talked about what it was like to be disappointed but proud at the same time. That was better than any lesson on teamwork I could have designed.
There are also awkward parts I still haven’t fully solved. When the guest is a parent of one of the kids, that child can act out—either playing up because their mom or dad is there, or going quiet and clingy. I try to prepare for it by letting the child be the helper for the day. If their parent is coming in, the child gets to hand out materials or hold up the pictures. That helps. But sometimes the child still struggles, and that’s okay. It’s real life.
And sometimes, honestly, the visit doesn’t go well. The guest talks too long. The kids get restless. I have to step in and wrap things up. It’s awkward for everyone. But a bad visit isn’t wasted—kids learn that things don’t always go smoothly, and that an adult can fumble and still be respected. I once cut a guest off mid-sentence because the class had lost the room. The kids went to lunch and I found the guest in the hallway, apologizing to me. I apologized to her too. It wasn’t anyone’s fault. We just didn’t match the moment.
Virtual guests have become a regular thing for us too, and they’re a different beast. We video-called a geologist in Arizona once, and the audio was patchy, and my projector kept cutting out. The kids crowded around one small speaker on my desk like it was a campfire. But then her dog wandered into the frame and sat on her lap, and you’d think a celebrity had joined. The kids asked about the dog for ten minutes. Eventually, the geologist laughed and said, “Okay, real talk—my dog is not a geologist,” and she showed them a piece of obsidian she’d picked up near a volcano. It was a mess. It was also memorable.
I don’t think we should have guests in the classroom every week. They work best as a disruption, something special that breaks the routine. If they happen too often, they become background noise and the kids don’t lean forward the same way. I aim for maybe two or three visits a month, depending on what we’re studying and who’s available. Sometimes that means asking around a lot. It can feel like I’m constantly making small talk in the pickup line just in case someone might have something to share. It’s a low-key version of networking that I never expected to do as a teacher.
And yet, when I look back on the year, the guest visits are some of the moments the kids talk about at the end of June. Not the worksheets. Not the spelling tests. The day a structural engineer accidentally broke his bridge model in front of twenty kids, laughed about it, and then helped them build a new one out of cardboard tubes. They remember the stethoscope. They remember the paper cranes. They don’t need every adult to be polished or perfect—they just need a new voice.
I’m still figuring out the balance. Some visits are gems, some are just okay, and some I’d rather forget. But I keep the door open. Because once in a while, a kid writes in their journal, “I want to be an engineer so I can make bridges that don’t break.” And that one line makes the next awkward guest totally worth it.
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