Hello, I am a high school math teacher. I have been teaching for 16 years. I am closely interested in stem projects. Stem creates curiosity for me just like my students.

# SPECIAL NUMBERS

Among the necessary mathematical knowledge and skills in daily life, natural numbers, their properties and the relationships between these numbers, the operations performed with these numbers, the properties of the operations mentally skills have an important place.  Considering that mathematics education starts with counting and that I have numbers at every stage of mathematics education, exploration studies and projects can be made in this way for students in mathematics education.  Transferring number relationships to real situations is the basis for starting to make sense of the world in a mathematical way.  The world of mathematics offers a wide variety of number types, all of which have their own characteristics.  Mathematicians formulate theories about the relationships between numbers and number groups.  The most well-known special numbers among numbers are as follows,

1. If there is a more interesting number than Pi, it is two Pi.  In other words, it is twice the Pi.  This number, known as the Tau number, has a value of approximately 6.28.  While pi relates the circumference of a circle to its diameter, tau relates the circumference of a circle to its radius, and many mathematicians argue that this relationship is much more important.

# WATER FOOTPRINT

Water footprint measures the amount of water used to produce each of the goods and services we use. Water is needed to make everything we use, wear, buy, sell and eat. In short, we can say “Water footprint is a measure of the fresh water in the volume of water consumed and/or polluted by humanity”. As you can imagine, the more we don’t pay attention to our water footprint, the more problems we will have in the future. If we learn a little more about the water footprint, there are three types of water footprints:

1- Bluewater: Water entering the products and returning to the environment or underground water.
2 – Green water: Water that evaporates from rain and moisture.

3 – Gray water: Water polluted by the production of goods and services.

What if we don’t pay enough attention to our water footprint? Serious water scarcity and pollution may occur in the world. Because of these, many species can become extinct and the world becomes uninhabitable for everyone. To prevent this, we must inform people and raise awareness. So how do we reduce our water footprint? We can reduce our water footprint by:

– turning off the faucet while blasting our teeth
– using water-saving toilets
– installing a water-saving showerhead
– take a shorter shower
– washing our clothes only when necessary
– elimination of domestic leaks
– using less water in the garden and while cleaning
– not flushing medicines, dyes, or other contaminants in the sink.

These directly reduce our water footprint. Let’s not forget that we have no place to live but our world! You, too, can calculate and continue to reduce your own water footprint online. To raise this awareness, we have prepared water foot games and informative posters with my students.