Numbers that can form the shape of a triangle, with each row one bigger than the one above have a total called the triangular number.
Use the "brick paper" to work out as many triangular numbers as you can.
In the same way, the numbers that can form the shape of a square are called square numbers.
Use squared paper to find as many square numbers as you can.
SHIVA Charity (UK) puts these free educational pages on its web site in order to be used primarily in Nepal, and Sri Lanka, where lessons are mostly repetitive "chalk and talk" and curriculum restrained. We are involved in teachers' resources training there, and hope that schools in the UK and elsewhere will support SHIVA Charity's cause with funding. Please visit our main pages to see the work we do, and how we raise money for individual projects and for child sponsorship.
