## Pi Day activities

• ACTIVITY 1 - PI TANGRAM (CRO)

The goal of the game is to combine tangram in three forms:

1. Number π

2. Square

3. An isosceles right triangle.

You can play in Geogebra or print a template

PI TANGRAM - eng.docx

(I have made new folder in our common GeoGebra book - Pi day.

You can copy the activities and put them in the same folder to keep all the work in one place.)

ACTIVITIES 2 – PI ART (CRO)

Martin Krzywinski is a scientist who specializes in bioinformatics, or using computer science and statistics to understand biological data. Krzywinski started publishing his pi art in 2013, beginning with this visualization.

Each digit of pi is represented by a dot of a different color: 3 is orange, 1 is red, 4 is yellow, and so on. Krzywinski then folded these colored dots, each of which represents a different digit ("1" or "4"), into a spiral.

Create your own color code and create a pi-dot image in GeoGebra or on paper.

Picture 1

Picture 2

Source:

http://mkweb.bcgsc.ca/pi/

PI ART.docx

ACTIVITY 3 - PI SKYSCRAPER (CRO)

Instructions:

The goal is to draw the outline of the PI city by drawing columns on paper ori n GeoGebra. The height of each column should correspond to the decimal number π.

π = 3.141592653589793238462643383279 5028841971693993751058209749445…

In GeoGebra we can also specify a color code -  for each digit one color

.

GeoGebra templete: https://www.geogebra.org/m/besn8tvk

(You can copy aplet and make your own work.)

PI ART.docx

ACTIVITY 4 - IN WHAT BOX IS THE MOST PITE? (CRO)

Instructions:

Three boxes contain pies. All pies are equal in height.

Calculate and explain which box contains the most pies.

Try to design your task and draw it on paper or in Geogebra.

https://www.geogebra.org/m/fdpndvhv

ACITIVITY 5 - PI SNAKES (GER)

"PI snakes" can easily be created with regular squares (easier in a coordinate system that is hided at the end - a little more demanding without using it).

ACTIVITY 6 – EINSTEIN'S RIDDLE (CRO)

Albert Einstein's birthday is on March 14, which also happens to be Pi Day.

The legend says that this problem was created by Albert Einstein in the last century. Einstein said that only 2% of the world could solve it.

Use all the clues below to fill the grid and answer the question: "Who owns the fish?"

You can use this section made in Bookwidget to help. When you type the correct word in the correct field, a green checkmark will appear. (Note: enter only the words provided in the field).

English version:

https://www.bookwidgets.com/play/9L7VRZ?teacher_id=5087538621448192

Croatian version:

https://www.bookwidgets.com/play/ML7VA4?teacher_id=5087538621448192

The document contains tasks and solutions.

EINSTEIN RIDDLE.docx

ACTIVITY 7 – PI PUZZLE

Compose the puzzle to get the number pi in the circle.

https://www.bookwidgets.com/play/ML7VZD?teacher_id=5087538621448192

Activity 7 - PI -snakes with GeoGebra

##### Thank you, Antonela (CRO)

There are wonderful ideas!

##### PI illustration with Excel

Students of my group worked last year with Excel and made nice charts. If you are more interested in this project please have a look at material-> files -> PGU Unna.

Great activity. I will use this wihit my 7. grade. Thanks. Antonela

##### nice!

The Pictures are looking very good and the ideas are wonderful
(Finn from Germany)

##### Greate things!

The pictures looks nice (Colin from Germany)