Sol dreamt of a strange world...

...full of rules and wonder...

They journeyed on until...

Sol awoke in an unfamiliar dark cave!

This seemed to alarm a mysterious knight
who ran off in a hurry.

Oof...I'm awake now, right?

Who was that knight?

...And where am I?

You're in Null Point — a faraway cave,
high up in the mountains.

AH! Luna, where'd you come from?!
I thought you were just part of my dream!

Normally, yes. I can be here briefly
using my power...

...but I'll have to leave and rest
for a while after this.

Really...? But I still don't remember
anything about myself...what will I do
after you leave?

Don't worry, Sol...I think there's a
solution to your lost memories. Remember the teddy bear you found earlier?

Oh yeah...I heard a voice when I held
that bear. It seemed familiar.

Exactly. I believe there are other objects
in this world that will help you unlock
memories of your past.

...And I'm sensing an object like that at the exit of this cave. Sol, you must find it.

Woah! Luna, what was the crashing noise
just now?!

How can this be...?
Sol, the exit is caving in!

W-what?! What should I do??
We need to get out of here!

Hmmm...first, let's stay calm.
We still have time, just less than I thought.

You can do this, Sol — you'll have to escape
the cave by using your rewriting power!

How can I do that...?

Look around you...doesn't some of this
seem familiar?

...Oh, you're right! It looks a little different, but there are objects, blocks, and rules here like the ones in my dream.

Indeed. I see this cave has objects
like rocks, fungus, fossils, and water.

Yeah. I also see some object blocks —
there's one for myself, the fungus, the rocks, and the water.

There's also the connector block...

And a state block. Hmm, this one says SINK.
I don't think I know that one.

Can you tell me what it means, Luna?

Hm...remember Sol, I won't always be here to give you the answer.

Instead, I can show you how to approach
problems that are new or unfamiliar.
That might be more useful for you.

After all, the first step to solving
a problem is to understand it.

And the more you understand a problem,
the more your rewriting power grows
when you WIN.

Really? Okay then, I'll try...
but where do I start?

Hmm...let's do this —
try using different object blocks to
rewrite the FUNGUS IS SINK rule.

Then try to figure out how SINK
affects each object.

You may not solve the problem right away,
and that's okay. What's important is that you try it and think for yourself first.

Okay, I'll do my best!

Discuss with a partner and be ready to share out after 2 minutes.
Let's hear about at least 3 different objects the class tried!

I see you tried several different
things, Sol. Good work.

But I haven't even solved this problem yet...

That's fine, Sol. Remember, understanding a problem is the first step.

Hmm...so what are the other steps to
solving a problem?

Let's see...here, I wrote them on this
scroll for you. These are the 4 steps I use
to solve a problem.

But for now, let's only focus on the
first step — understanding the problem.

Right. How can I understand blocks and
rules I've never seen before?

You’ve actually already started doing it...by using a powerful strategy called tinkering.

Tinkering? What's that?

Tinkering is like experimenting – you try something new, then pause to notice and understand what happened.

Try something new...? Like how I tried
writing new rules with the SINK block,
without knowing what would happen?

Yes, that’s one example of tinkering.
There are many ways we can tinker in
this world.

For example, right now the FUNGUS IS SINK.
Sol, what could you try in order to learn
more about how that rule works?

Hmm...my first idea is just to go touch
the fungus and see what happens.

That’s a great idea. Touching an object to
see what happens is one way to tinker.
Why don’t you try it?

Okay...I’m kind of scared it’ll be
a mistake though.

That’s understandable, but remember that mistakes help us learn new things.

Also, don’t forget you can undo and
start over as many times as you need.

Oh, that’s right. Alright, here I go...!

Waaaahh!!

Okay, let's undo.

 Are you alright, Sol?

OMG...that was scary, but also kind of fun?
I didn’t know you could sink in fungus
like that...

Aha, now this is the important part of
tinkering – after you try something,
pause and think about what happened.

What did that experiment tell you about
the SINK block?

Hmm...when I touch an object that’s SINK,
I disappear. But that’s not all...