How to explain 2d And 3d Shapes To Kindergarten
2D vs. 3D Shapes! Mr. B's Brain - Ep. 2: 2D and 3D Shapes
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oh hey kids
it's mr. B and banjo Bob hurry kids and
today we're gonna learn about shapes you
know there's so many different kinds of
shapes
there's 2d shapes and there's 3d shapes
but mr. B how do you tell the difference
between a 2d shape and a 3d shape
that's a great question Bob 2d means two
dimensional can you try saying that
two-dimensional two-dimensional very
good Bob thank you two dimensional means
the shape goes two ways take a look at
the square it goes two ways it goes side
to side and it goes up and down one way
two ways this shape is two-dimensional
Wow
now a 3d shape goes three ways it also
goes side to side it goes down and up
and it also goes from back to front back
to front did you catch that Bob yeah a
3d shape goes side to side up and down
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and back to front
another way to test if a shape is 2d or
3d is to see if it's flat because if
it's flat it's a 2d shape let's try the
circle first turn it over take a good
look that looks pretty flat to me a
circle must be a 2d shape now let's try
the sphere rotate it over this sphere is
still pretty puffy and full it must be a
3d shape we can further experiment with
the flatness of a shape by doing the
clapping test are you ready for that Bob
you bet
remember if the shape is flat it's a 2d
shape and you should still be on the
clap now let's try the 3d shape Oh No
the 3d shape is too puffy it sticks out
too much I can't clap sorry Bob the
music's over if you're still not sure if
a shape is 2d or 3d there is one more
way to test but leave this one to me
because it's kind of dangerous alright
it's called the sit test here's what's
gonna happen
Bob's gonna put a shape behind me and
I'm gonna sit down if it's a 3d shape I
should be able to sit coz 3d shapes are
full and they stick out but if it's a 2d
shape I might be in some trouble
are you ready Bob give me the first
shape okay mr. B here comes a sphere oh
wow a sphere must be a 3d shape it
sticks out three ways and keeps me off
the ground thanks Bob good job mr. B how
about another one yep Bob I'm ready
give me the next shape okay mr. B how
about a rectangular prism whoa
rectangular prism must be a 3d shape cuz
it kept me off the ground Bob that's
crazy
it goes side to side front to back and
up and down to keep me from falling
pretty cool guys okay mr. B time for the
last shape I'm ready when you are Bob
give me the last shape okay kids let's
try a triangle
oh no that definitely wasn't a 3d shape
mr. B you're right Bob
this was definitely a 2d shape it only
goes two ways this way in this way but
it didn't come up so I couldn't sit on
it and I fell on the ground it's so flat
I went down fast Bob I think I'm done
with shapes for today
well how about I play your favorite song
and make you feel better
that'd be great Bob thanks okay I don't
feel better and I did have fun today
and I hope you did too now it's your
turn to find some shapes and learn
something all right boys and girls see
you next time bye-bye
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you
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