## CS 1025 01 - Week #11 (Mar 27-31)

### Assignment: Scratch in-class exercise to be done and emailed to jacobson@cs.uni.edu.

1. About Scratch overview and video demo. Fun video is 1 minute 37 seconds long. Watch it!
```With Scratch, you can program your own
interactive stories,
games, and
animations
and share your creations with others
in the online community.
Scratch helps young people learn to
think creatively,
reason systematically,
and work collaboratively - essential skills
for life in the 21st century.

Scratch is a project of the Lifelong Kindergarten Group
at the MIT Media Lab.   It is provided free of charge.
```

2. Scratch and dancing cats - drawing a square with cat instead of turtle. SCRATCH.MIT.EDU

3. Scratch Resources and links and examples.

4. New Example created on IEE and IE: Scratchy the Cat Dancing tutorial results.

5. Tri to use Scratchy the Cat and a Cowbell as the actors to teach triangles RIGHT: Scratch and NetLOGO turtle graphics triangle terminology
Legs, Hypotenuses, Right Triangles, where is Waldo in Cartesian coordinated 2D space?
Needs more cowbell, but has some at least!
Adjacent leg, Opposite leg, and Hypotenuse of one of the acute angles or a right triangle.
SOH, CAH, TOA acronyms... Coming soon to our NetLogo lessons.

6. Here is a JOKE or POEM example done with Scratch. Have you heard this joke/poem before. I found it in my STANTZ22 account.

### Friday, March 24th

```What is the xcor of the following turtle?
Use ONLY the TANGENT trig function to get the answer.
You cannot use the Sine or the Cosine.

;; NetLOGO procedure that placed the turtle and drew the hypotenuse.
TO solveWithTangent
ca
cro 1
[
pd
set color white
set size 2
rt 32
fd 14
]
END

```

```;; Friday, March 31st, 2017 exercise

TO SolveWithTangent
ca
ask patches [ set pcolor white ]
drawAxis
drawLegs
cro 1
[
pd
set color black
set pen-size 3
rt 32
fd 14

]
END

TO drawAxis
cro 1
[
pd
set pen-size 1
fd 33
rt 90
fd 33
die
]
END

TO drawLegs
cro 1