<prompt> unaweza kugeuza matini haya ya swahilikwa kiingereza?kuhusu wanafunzi wa miaka mia mbili na arobaini huko contra costa county, california wanafuatiliwa na teknolojia ya redio ya mzunguko wa redio rfid kama sehemu ya kuboresha kituo cha mwanzo wa kichwa kilichowezekana kwa sheria ya kuokoa na kufufua ya marekani ya 2009 arra.  <response>: about two hundred and forty pre-schoolers in contra costa county, california are being tracked with radio frequency identification rfid technology as part of a head start facility upgrade made possible by the american recovery and reinvestment act of 2009 arra. 