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4th grade reading & vocabulary
Course: 4th grade reading & vocabulary > Unit 2
Lesson 1: Building knowledgeHow to grow my brain
Forty years ago, we seemed to know more about the Moon than we did about how our own brains work and grow. Not anymore! We're excited to share some new discoveries with you. So, how does the brain work and grow?
Want to join the conversation?
- Does the brain stop growing?(36 votes)
- The brain does not really "grow" in the true sense of amassing nervous tissue. Instead, it's actually losing cells every day, and as such, dendritic connections are either being trimmed away or reconnected. With critical thinking and with learning new things, the brain develops better connections with remaining cells, but even this diminishes over time due to age. An elderly brain can be half it's weight since when it was a child. Eat well, exercise, and your brain will "grow" with you.(37 votes)
- I really can't stop watching this! It's funny and it's also really educational.1:04(18 votes)
- I loved this video it was very funny haha(12 votes)
- When do we stop growing?(8 votes)
- Even if you hit puberty late, you’re unlikely to grow significantly after the ages of 18 to 20. (I don't exactly know if this helped.)(0 votes)
- Is this the thing you want us on(6 votes)
- How many bones are in your body FOR A BABY(5 votes)
- A baby's body has about 300 bones at birth. These eventually fuse (grow together) to form the 206 bones that adults have. Some of a baby's bones are made entirely of a special material called cartilage (say: KAR-tel-ij). Other bones in a baby are partly made of cartilage.(3 votes)
- pov: your watching this in 2021😳(4 votes)
- Never knew brains had hands.(4 votes)
- Why do some of the neurons have mouths eyes in glasses(4 votes)
- How many parts does your braaaaiiiin have(3 votes)
Video transcript
- [Instructor] So this
is your brain, say hi. Okay, it's a representation of your brain. Brains don't have hands, they have lobes and other structures which we'll get to. But I wanna talk to you about your brain. You see, your brain is
capable of incredible things but I think a lot of times,
we can feel pretty down on our brains, on ol' Thinky Pinky here. We beat up on him, say bad things about our brain's abilities. Say, we have trouble
understanding a subject in school or solving problems or
learning a new skill. It's easy to say, oh I'm not smart. I'll always be this way. Hey, stop doing that. What we think of as intelligence, what we think of as
smartness, is not fixed, is not stuck in one
place, is not permanent. Your brain can improve. Your brain can grow. Come with me on a journey of discovery! Here we go, into the brain. Excuse me, coming in hot. This is a thing called a neuron. Oh hey, welcome to the
inside of your brain. A neuron is a brain cell. There's over a 100 billion of these things making up your brain. Put it this way, there are
over 13 times more neurons in your skull than there
are human beings on Earth. Lot of 'em. They're the cells that help you think. Mind you, a single neuron,
and let's call her Nellie, hi Nellie the neuron, Nellie on her own can't do all the thinking your brain needs to even pick up a glass of water. Fortunately she's got friends. There's dendrite Dave,
there's Alonzo the axon, there's Magna myelin, and
look little Sally synapse. So teensy tiny. Your brain behaves like a muscle. If you're serious about
lifting weights, right, and you keep it up on a regular basis for a long period of time,
weeks, months, years, you're gonna develop muscles. But you don't grow
muscles by doing nothing. It takes effort, it takes struggle, repeated failures in fact. You mess up and then you learn, and then eventually you
manage to jump the log or whatever problem
you're trying to solve. Wait, we've lost focus
here, back to neurons. When you struggle your
neurons are struggling too, and that's important because
when neurons struggle, they lean on each other. They make connections, they start to form this densely connected
network inside your brain allowing little jolts of
electricity to pass down them more and more efficiently. That's thinking faster, that's
your brain getting smarter. That's your brain muscle
gettin' swole kid. So the next time you say to yourself I can't do this, I'm just too dense, remember that brain
density is your friend. If fact the denser you
are the more connections between Nellie and her
neuron pals that you got inside your brain, the
stronger and more powerful your thinking parts become. The more you work
through your frustrations with the right learning
strategies, the more your neurons get more used to working together, the closer you are to
being that much smarter. Now get out there and do your best. Don't give up, grow those
brains, and remember, you can learn anything.