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Hello.
I just wanted to make a quick video
to introduce you to what is probably –
or what is definitely –
the biggest change that we've ever made
in the history of the Khan Academy.
We've introduced a new learning flow
that tries to engage people more.
We've heard from a lot of users
that there's a lot of content on Khan Academy.
They didn't know where to start.
They didn't know what level was appropriate for them.
And so we've spent a lot of time thinking about this.
And what you're about to see is our new 'learning flow.'
So I'm a new user.
And it gives us a nice little welcome message.
And I say, "Cool. Let's explore.".
So when you log in,
you'll see this mission – The World of Math.
And right now, as we launch,
that is the only mission that we have.
It will essentially walk through all of the math exercises
that we have on Khan Academy.
Over the next few months, you'll start to see other missions –
missions aligned to grade levels –
missions aligned to preparing for a test –
missions aligned to being able to do some type of project.
You'll also start to see missions in other subjects.
Now these squares that you see –
this is, for those are you familiar with our knowledge map,
you can kind of view it as a condensed knowledge map
for the particular mission that you're thinking about.
So here, there are 482 boxes.
Each of these represents a skill.
It represents a type of math problem.
So what we're going to do right now –
and I highly recommend you do this as well –
?? fun.
– ?? with the pretest.
This is to address the issue of,
"Where do I start on Khan Academy?"
"W?? exercises that are most appropriate for me?"
So I'm going to actually take this pretest right now.
So let's start the pretest.
So if I see anything that is completely daunting to me,
I should just say, "I haven't learned this yet."
What is the area of the rectangle?
?? going to be 3 × 9, which is 27 square inches.
Well let's just say, for the sake of argument,
let's pretend that we're –
we have?? learned algebra or geometry ??.
?? I haven't learned this yet.
I have?? learned ??.
?? this is an adaptive test ??.
If I answer questions right,
its going to get harder,
or go to more advanced topics.
If I get questions wrong,
it's going to give us simpler, or more basic topics.
Move the orange dot ?? thirds.
So four thirds.
??, three thirds, and ??
Submit my answer.
And I have ?? more problems.
So this is a too long ?? here.
So similar triangles.
?? I said I'm going to pretend like
I haven't taken geometry yet.
So ?? say, "I haven't learned this."
Now they give us a proportion.
9/?? to is equal to what over 18?
We?? multipl?? the denominator by nine –
?? we have to multiply the numerator by 9.
?? 9 × 9 is 81.
And there we go.
I've done my pretest.
And now the system is actually building a model
for what I likely know and what I likely don't know.
And ?? look at that in a second.
So now you see ?? tiles changed colors.
?? that I haven't even practiced this thing yet –
while blue means that I've shown –
that the system thinks that I might
know that at a reasonable level.
?? the deeper the darkness ?? the blue,
the better that I actually know that.
So let's actually start looking at these.
So you can see here –
you can see here th?? I can go on ?? the concepts.
And ?? says I'm practiced for Congruent Segments.
It says right here 'need practice'
or hasn't started for 'Points Lines and Planes.'
?? you click on any one of these,
you can go directly to that exercise.
So based on how I did the pretest,
it immediately figured out what I probably know well –
what I might not know that well.
And now this is key.
?? the old Khan Academy ??
we just had this huge knowledge map.
ZZ?? said, "Oh I guess I'll work on something –
one of these 500 things ?? I see ?? me.
This now will recommend what the next best thing is for me.
So let me see.
?? Reading Tables 2
So I can start working on that.
The table below shows solar panel installations by state
during the last fiscal year, except one entry is missing.
So this entry is missing.
And if I'm completely confused by this –
I've never seen it – we have a video right here
that should hopefully help explain that concept.
?? go over here.
And it says, for this one, I have to get five in a row.
?? I get five in a row, I'm gonna get to that practiced state.
So I will just continue touring.
But I don't have to do exactly this one.
This is what the system recommends
the most as the next best thing.
But then there are other things that ??
thinks I should also be working on right now.
So, say, Finding Absolute Values.
What is the absolute value of -6.5.
?? that's 6.5.
Likewise, we still have videos there.
And I got one ?? of my five correct.
And if you have a coach,
or if you are someone's coach,
the coach can also make their own recommendations.
Obviously, we have a lot of coach tools,
so that a coach can keep track of
what a student is working ??.
?? then based on that, the ?? can recommend
particular exercises to be focused on, or to be prioritized.
Now once ?? spent some time on the system,
your learning dashboard might look
a little bit more like this.
?? to get closer and closer to mastery –
to get deeper and deeper shades of blue there –
not only do you need a practice it – get five in a row –
(And that sometimes might change –
depending on the exercise.)
– but later on, you ?? show that you still know how
to do that thing in a mix many, many, many
different types of problems.
And the place that happens is right over here,
which we call our 'mastery challenge.'
This is the tool that you want to use repeatedly
in order to get those squares as dark as possible.
So let me take a mastery challenge.
-7 -3i.
The absolute value ?? 5.
?? 5.
Is this triangle equilateral, isosceles, or scal???
So it is definitely isosceles.
?? it was the ??lateral, these would be 60 degrees.
So it is isosceles.
??.
?? going through all of the different types
of the mathematics to make sure that
not only have I remembered how do these –
not only have I retained the understanding
of these concepts, but I also can do it
in a mixed environment where ?? also rec??,
"Hey, what is the tool I need to use right now."
PROBLEM: What are the factors ?? ?
So ??.
?? could have 1.
We could have 2.
3.
??
5 ?? divisible.
6 is.
9 is.
And 18.
And I could have used ?? tool to help ?? with that.
?? if you know the factors, ??.
?? check our answer.
Plot 10, 6 and select the quadrant in which point lies.
10, 6.
?? in the first quadrant.
PROBLEM: Move the orange dot to -3 -2i.
-3 -2i.
And now I'm completing my mastery challenge.
?? get, essen??, a report for,
"What ?? I achieve by completing this mastery challenge?"
And ?? showing us the things that have gotten darker
based on the fact that these are things
that I had practiced in the past,
but in this last ?? problems,
I show?? that I still remember ??,
and I could do it in a situation
where I'm getting a whole mix of problems.
And so it's our hope that you enjoy this
as much as I just did –
that this learning flow really makes
sure that you know where to start –
that you're starting on things that are at your level –
and not only are you learning new things,
but you have an opportunity to review those new things,
and you have an opportunity to make sure
that you know when to use those things
when you're faced with a whole mix of problems.
So, I look forward to seeing how you can
fill out your knowledge map ?? –
fill out all of the skills, and fulfill your mission
in the World ?? Math, ?? in the future other missions.
And we really want to hear from you
to figure out how we can make this entire experience better.
So I encourage you to go down
to the bottom of these pages and say "Give Feedback."
And tell us what you think – tell us what's working for you –
what's not working for you.
And if you have ideas for things that might
make it even better, let us know.