You have nine minutes before lunch, a class that just came back loud from recess, and a unit on the human body starting Monday. A podcast can fill any of those gaps, but only if the episode fits the time you actually have and you trust what comes out of the speaker. This is the classroom guide to Who Smarted?, the free educational podcast for kids, written for the teacher deciding whether to press play.
Who Smarted? is made by Atomic Entertainment, the team behind Nat Geo’s Brain Games and Netflix’s Brainchild, and Common Sense Media rates it a Common Sense Selection for ages 6 and up. Every number on this page was measured from the show’s public feed on October 5, 2026, so you can check it instead of taking it on faith.
Elementary here means both the kindergarten room where five minutes is a long time and the fifth grade room that wants real substance. If you teach kindergarten through second grade, you need something short, safe and easy to follow. If you teach third through fifth grade, you need episodes that can carry a lesson opener or a real discussion. And if you run a library, a specials block or a homeschool table, you need something that works with zero prep on a Tuesday morning.
By the end, you will know which of the show’s three episode formats fits each slot in your day, where it lands from kindergarten to fifth grade, what to preview first, how it compares with Wow in the World, Brains On! and But Why, and how to get the ad-free version free with a school email address. That is enough to fill a week of listening without writing a lesson plan.
The guide moves in four parts: why audio works at this age, what the show is in hard numbers, how to fit it to your schedule and your grade, and a first week to try it. Start with the question most teachers ask first: why a podcast at all?
Why Audio Works So Well With Elementary Kids
Elementary students can understand far more by ear than they can read on their own. Andrew Biemiller of the University of Toronto’s Institute of Child Study found that average children don’t reach the point of reading what they could understand by listening until around 7th or 8th grade. A podcast lets a second grader take in ideas about volcanoes or the Titanic that would be locked inside a text written above their reading level.
Who Smarted? is built around that gap. Each episode takes one question kids really ask, such as why we burp or what a tsunami is, and answers it with a story, sound effects and multiple choice questions that kids guess out loud. Common Sense Media calls it “a great listen for kids who are more reluctant when it comes to academics”, and that is the point. The best classroom podcast is not the one with the most facts per minute. It is the one your class asks to hear again tomorrow. A change of pace like this is one of the simplest ways teachers make boring lessons fun.
Picture a third grade class of 24 with three students reading at a first grade level. During a printed article on tsunamis, those three are lost by the second paragraph. Play “What is a Tsunami?” instead, 19 minutes long, and all 24 kids start on the same footing, shouting guesses at the same questions. The discussion afterward includes the three kids who would have sat it out. Audio raises the floor without lowering the ceiling.
What Who Smarted? Is, Measured From Its Own Feed
Who Smarted? is a free educational podcast for kids with 1,154 public episodes released between September 25, 2020 and October 5, 2026, in three formats with three very different lengths. That spread is what makes it useful in a classroom: there is almost always an episode that fits the minutes you have.
| Format | What it is | Typical length, last 12 months | Episodes in the feed | Recent example |
|---|---|---|---|---|
| Main episode | One big question told as a story, with quiz breaks | 18 minutes, most between 16 and 20 | 912 | How did Dynamite cause the Nobel Peace Prize? |
| Smarty Q | One quick question, answered fast | 10 minutes | 77 | How many languages are there in the world? |
| Trusty Trivia | A rapid trivia round on a single topic | About 7 minutes | 165 | Trusty Trivia: Koalas |
Those run times are the lengths listed in the free public feed. New episodes arrive six days a week: 81 of them in the 13 weeks to October 5, 2026, with main episodes on Monday, Wednesday and Friday, Smarty Q on Tuesday and Saturday, and Trusty Trivia on Thursday. On Apple Podcasts the show holds a 4.6 star rating from 4,958 ratings as of the same date, and the feed is marked as not explicit.
The subjects move around on purpose. Between September 18 and October 5, 2026, the show covered how memory works, why we feel pain, what tsunamis are, inventions from ancient Egypt, how dynamite led to the Nobel Peace Prize and what Helen Keller accomplished. Science, history and language all show up in the same week, which is why the show slots into almost any unit.
Which Episode Fits Which Part of the School Day
Match the format to the minutes first and the topic second. Under eight minutes, play a Trusty Trivia round. Ten to twelve minutes, play a Smarty Q. Twenty minutes, play a main episode. Here is how that maps onto a typical elementary day:
- Morning meeting or bell work, about 10 minutes: a Smarty Q, with one question written on the board before you press play.
- Transition after lunch, recess or specials, 5 to 8 minutes: a Trusty Trivia round, which settles a loud room because everyone wants to call out the answer. When they beg for more, keep going with our classroom trivia questions for kids.
- Unit opener, 20 minutes: a main episode on the topic, paused twice so kids can predict what comes next.
- Indoor recess or a rainy day: a main episode the class picks by vote.
- Last ten minutes of the day: a Smarty Q as a calm, quiz style close.
- Listening center: one episode per group with a listening exit ticket, covered in the first week plan below.
We call this the Bell Schedule Matcher. Tell it how many minutes you have, your grade and what you need the time to do, and it hands back the right format, a real recent episode and a before, during and after routine.
Say a first grade teacher has a nine minute gap between music and lunch every Thursday. A main episode gets cut off right at the good part. A Trusty Trivia round on owls fits with a minute to spare, and Thursday is the day new Trusty Trivia comes out, so the class gets a fresh one every week. The format choice, not the topic, is what makes the slot work.
If your gap is fixed and short, choose by format first and accept whatever topic comes with it. If you are opening a unit, choose by topic first and make room for a main episode, because a ten minute Smarty Q rarely goes deep enough to hang a unit on.
Where Who Smarted? Fits From Kindergarten to Fifth Grade
Who Smarted? fits best in first through fourth grade, works in kindergarten with short formats and frequent pauses, and still works in fifth grade when you give it a job. Common Sense Media rates it for ages 6 and up and notes that some content will fly over younger listeners' heads, while older kids and grown ups stay entertained. On Apple Podcasts, a reviewer who gives their age as 10 calls it the first podcast they have listened to continually, and another, age 13, still plays it in the car.
| Grade | Best formats | How to run it |
|---|---|---|
| Kindergarten | Trusty Trivia, Smarty Q | Pause at every quiz question so kids can answer, and retell the answer in one sentence |
| First and second grade | Smarty Q, main episodes split in two | Stop at the halfway point and ask what they think happens next |
| Third and fourth grade | Main episodes, played whole | Follow with a two question exit ticket |
| Fifth grade | Main episodes as a research launch | Have each student check one fact against a second source |
For second and third graders who finish an episode still hungry for questions, our trivia for 8 year olds picks up right where a Smarty Q leaves off.
If you teach kindergarten, start with Trusty Trivia and treat each episode as a call and response game, because a five year old's attention runs out long before an 18 minute story does. If you teach fifth grade, skip the warm-up use entirely and make the episode the opening move of a research task, because older kids engage more when the show is a source to question than when it is a treat.
Picture a fifth grade class that groans at the sound effects in the first minute. Their teacher reframes "What modern inventions came from Ancient Egypt?" as a challenge: catch one claim the narrator makes and verify it in the library database before Friday. By Wednesday, half the class is arguing over which of the narrator’s claims holds up. The silliness became the hook for a research skill. For a second listen on the same unit, the show’s older episode on life in ancient Egypt pairs well with it.
Ads, Content Rating and What to Preview Before Class
The free feed carries ads, and teachers can remove them at no cost. Who Smarted? gives educators a free subscription to Who Smarted?+, the ad-free version with the full back catalog, when they sign up with an email address ending in .edu, .k12, .org, .gov or .schools. If your school email does not match, the show's team verifies educators by email at whosmarted@whosmarted.com.
On content, Common Sense Media lists violence, romance, drinking and products as not present and flags some potty humor, but not much. The feed is marked not explicit, and Apple rates it Clean. That still leaves four things worth a look before you play an episode for a whole class:
- Sensitive topics. The catalog includes episodes on depression, autism and concussions. Preview them so you can set up the conversation, especially if a student in your room is personally affected.
- Bathroom humor titles. Episodes like "Do Birds Fart?" are gold for buy-in with second graders and a distraction in some rooms. You know your class.
- Promo episodes. The free feed occasionally carries short announcements, like the three and four minute Podcast Camp discount episodes in July 2026. Skip them when scrolling, or use the ad-free educator version.
- School filters. Episodes are on Apple Podcasts, Spotify, Amazon Music, YouTube and whosmarted.com. Many districts block one or two of those, so check which one your network allows before the lesson, not during it.
If ads are not allowed in your classroom, set up the educator subscription before you play anything. If ads are fine and you only use the show occasionally, the free feed works, but listen to the first minute on your own device first so the ad break does not surprise you.
How Who Smarted? Compares With Wow in the World, Brains On! and But Why
Who Smarted? is the shortest and most frequent of four popular kids' learning podcasts, while the other three go longer per episode. We measured all four public feeds on October 5, 2026, using every episode released from October 5, 2025 to October 5, 2026, all formats included.
| Podcast | Made by | Median episode length | New episodes, last 13 weeks | Best classroom use |
|---|---|---|---|---|
| Who Smarted? | Atomic Entertainment | 16.5 minutes | 81 | Fitting a fixed gap, daily routines |
| Wow in the World | Tinkercast | 23.5 minutes | 53 | Science units, with Tinkercast's teacher materials |
| Brains On! | Brains On Universe | 31.3 minutes | 15 | Longer science deep dives |
| But Why | Vermont Public | 27.9 minutes | 7 | Kid submitted questions for younger listeners |
All four are good shows, and plenty of classrooms use more than one. Reach for Brains On! when a science standard deserves half an hour, and But Why when your youngest students want their own questions answered. Reach for Who Smarted? when time is the constraint, when you want something new tomorrow and the day after, and when you want history and culture in the mix, not only science.
A First Week of Listening, Day by Day
The easiest way to start is one short episode a day for five days, with the length growing as the class learns the routine:
- Monday: play a Smarty Q during morning meeting and teach one rule: shout the answers to the quiz questions, then listen.
- Tuesday: play the newest Smarty Q as an after lunch transition and time how fast the room settles.
- Wednesday: play a main episode tied to your current unit, paused twice for predictions.
- Thursday: run a listening center with Thursday's new Trusty Trivia and a one page exit ticket.
- Friday: let the class vote on next week's main episode from three titles you pick.
The Listening Exit Ticket below builds that one page sheet for any episode in a few seconds: type the title, pick a grade band, and print.
Say a homeschool parent teaches a second grader and a fourth grader at the same kitchen table. They play "What does it mean if an Animal is Endangered?" once, then hand each child a different exit ticket: the second grader draws one endangered animal and says why, while the fourth grader writes two causes and one thing people are doing about it. One episode, two levels, about 25 minutes total.
By Friday you will have filled five slots with zero prep and learned which format your class responds to. Over a full year, the payoff is bigger: kids who walk in with their own questions, because a show spent all year modeling that a good question is the start of the fun. Some of them will want to make a show of their own, and the self-paced Podcast Camp for kids walks 6 to 11 year olds through writing, recording and editing their first episode.
Bring Who Smarted? Into Your Classroom Free
Who Smarted? was built for curious kids, and a classroom full of them is exactly where it does its best work. The episodes are short enough to fit the gaps in your day, varied enough to fit your units, and free to use. Sign up for the free ad-free Who Smarted? educator subscription with your school email, and your class can start listening tomorrow morning.
