What can technology do to make the world better? Three young people are starting new businesses to answer the question. Eighteen-year-old Mach was the youngest person in Poland to receive money from others to develop his company. He started FIVE, a mobile messaging app , for deaf people. The app lets deaf people create their own hand signs to communicate with friends. The app now has more than 10,000 deaf users. And Mach thinks there will be about 150,000 more deaf users next year. Mach says, "I love to create. I will stick to it to the end of my life." William Zhou was born in Beijing and grew up in Canada. He strongly wanted to make a change in education. So he created CHALK. It is a group of programs that supports individual teaching and learning. CHALK is now used in 20,000 schools by more than 100,000 users worldwide. Zhou says you have to find something you truly care about. Or you may just end up giving it up. George was born in Tanzania . He learned about renewable energy in Europe and began thinking about using solar energy in Africa. Tanzania is a place with bright sunshine, but more than 90 percent of people have no electricity to use. After graduation, George returned to Tanzania and started his own company, SunSweet Solar. It has found early success in rural areas. George hopes to create jobs and help build his country. He understands the process will take time. "But I think we are on the right way."
Where was SunSweet's early success?
Of what nation?
What are the Tanzanians lacking?
How many people have none?
What makes this country ideal for solar?
Who was the Polish teenager?
What did he start?
Who uses it?
How many?
Does he plan on staying with the company?
Who was the Chinese man?
What did he want to change?
How?
What's the name?
Is it available at any educational institutions yet?
How many?
How many users are there?
What does the Canadian believe you should find?
Who was the youngest Pole to get funding?
How old was he?
What can the deaf make?
rural areas
It has found early success in rural areas
Tanzania
George returned to Tanzania and started his own company
electricity
but more than 90 percent of people have no electricity to use.
90 percent
90 percent of people have no electricity to use
bright sunshine
Tanzania is a place with bright sunshine
Mach
Eighteen-year-old Mach was the youngest person in Poland
mobile messaging app
He started FIVE, a mobile messaging app 
deaf people
mobile messaging app , for deaf people
more than 10,000
The app now has more than 10,000 deaf users
yes
I will stick to it to the end of my life
William Zhou
William Zhou was born in Beijing 
education
He strongly wanted to make a change in education.
group of programs that supports individual teaching and learning
So he created CHALK. It is a group of programs that supports individual teaching and learning
CHALK
 So he created CHALK.
yes
CHALK is now used in 20,000 schools by more than 100,000 users worldwide
20,000
used in 20,000 schools
more than 100,000
 more than 100,000 users worldwide.
something you truly care about
Zhou says you have to find something you truly care about
Mach
Eighteen-year-old Mach was the youngest person in Poland to receive money
Eighteen
Eighteen-year-old Mach 
hand signs
The app lets deaf people create their own hand signs to communicate with friends