Is My Kid’s Constant Lego Building A Waste Of Time? A Mom And Former Teacher’s Take
Last Tuesday, I was folding mismatched soccer socks on the living room couch when I leaned over to check my 10-year-old Leo’s planner. He had a 5th grade math test on slope and angles scheduled for Thursday, and he’d promised he’d start reviewing right after after-school snack. When I looked up, he was dragging our dented 15-gallon garbage bin of sun-faded garage sale Legos onto the rug, already sorting bricks by size.
I felt that familiar twinge: Is this just a waste of time? He’s too old for this, right? He should be doing flashcards, not messing around with plastic blocks. I opened my mouth to remind him of the test, when he mumbled something without looking up that made me pause. “Just gotta get this ramp right for Mia’s marbles. Won’t take long.”
I sat back down, kept folding socks, and watched him. The first ramp was way too steep. The first marble launch went straight off the side, hit my coffee mug, and left a water ring on the side table. Leo huffed, picked it apart, propped the end up with a thin 1×1 brick. Tried again. Still flew off. He got up, grabbed his ruler and a scrap notebook from his desk, sketched a little diagram, marked down some numbers, and started rearranging the support beams.
Wait a minute. That’s slope. That’s exactly what’s on his test. I remembered that at his last parent-teacher conference, his math teacher said he struggled to connect the numbers on the worksheet to actual things. He could memorize the formula, but couldn’t apply it to a real problem. I’d been on his case for weeks to do more extra practice, never thought he’d be doing it without my prompting.
When he got the third ramp right, the marble rolled all the way down to the end and into the cup Mia had set out, and they both cheered. Leo turned to me, grinning, and said “Told you. I needed 15 degrees, just like the worksheet said. I just couldn’t picture it until I built it.”
That’s the moment I realized how often I write off the things my kids spend their free time on as a waste. I spent seven years teaching third grade, so I know better than most how much pressure there is to fill every minute with productive, curriculum-aligned activity. I’ve caught myself thinking it a hundred times: Is drawing all over junk mail a waste of time? Is collecting acorns and sorting them by size a waste of time? Is scrolling through Minecraft building tutorials a waste of time? Most of the time, I’ve been wrong.
What I’ve started doing instead of immediately nagging to put the thing away is a two-minute check-in, no exceptions. First I ask, “What are you working on?” Then I ask, “What are you figuring out?” It takes less time than arguing, and it almost always tells me what I need to know. Last month, my 8-year-old spent 45 minutes rearranging his rock collection instead of starting his book report. If I’d pulled the old “homework first” rule I learned in training, I would’ve made him stop. When I asked those two questions, he told me he was sorting them by density, which was that week’s science homework, and sorting helped him clear his head so he could think about what he wanted to write for the report. I let him finish. He wrote the whole report in 20 minutes after that, and got a better grade than his last three.
Of course, it’s not never a waste of time. Last month, Leo spent three hours mindlessly scrolling TikTok watching other people build Lego sets, and that was avoidance, plain and simple. He knew he had to finish a writing assignment, he was stuck, so he just zoned out. The two-minute check-in tells me that too: when he can’t tell me what he’s working on, or he just shrugs and says “nothing,” that’s when I step in to help him switch gears. I don’t yell, I just say “Let’s spend 20 minutes on that assignment first, then you can go back to that later.”
I’ve also adjusted that old “homework first” rule for our house. For kids who get stuck on rigid, abstract school work, I try 30 minutes of whatever they’re already engaged in first, as long as they shake on it that they’ll do the work after. It sounds counterintuitive, I know. But Leo got a B+ on that slope test, two points higher than his last test where I made him put the Legos away an hour early to study flashcards.
I still have that twinge of doubt, honestly. I scroll through parent groups and see other parents talking about after-school tutoring, coding camps, all the productive things their kids are doing, and I think maybe I’m wrong, maybe all this time building is just wasted. Last weekend, Leo spent all Saturday building a tiny hinged door for Mia’s dollhouse instead of working on his science fair project outline. I did my two-minute check-in, he said he was testing hinge designs for his science fair project anyway, and he’d do the outline after dinner. He kept his word, and his outline is about hinge strength and design, which is way more interesting than the generic volcano idea he had last month.
I don’t know if all this building will get him into a good college, or get him a perfect score on his state tests. There’s still a lot that’s up in the air. Some weeks he does waste more time than I’d like, and I have to step in to reset. But I do know he doesn’t give up on a problem as fast as he did a year ago. He tries one way, it doesn’t work, he takes it apart, and he tries another. That’s not something I can teach him with a worksheet. And that, for me, is enough to stop calling it a waste of time.
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