Toronto is the third - largest centre for financial services and communications technology in North America, and the site of major clusters of innovation in industries ranging from aerospace to biotech. (rotman.utoronto.ca)
Section 1 focuses on developing efficient strategies for learning and internalizing single digit addition and subtraction facts within 20, with a strong emphasis on the three major clusters for addition and subtraction basic facts, namely count on, use doubles and make a ten. (k-5mathteachingresources.com)
«We also found some suburbs of Adelaide identified as major clusters in male suicide. (sciencedaily.com)