Mission. 1  The International BaccalaureateÂ® (IB) is more than its educational programmes and certificates. At our heart we are motivated by a mission to create a better world through education. 2  The International BaccalaureateÂ® (IB) is led by the Board of Governors, the Director General and the Senior Leadership Team (SLT).
Hallmark definition, an official mark or stamp indicating a standard of purity, used in marking gold and silver articles assayed by the Goldsmiths' Company of London; plate mark. See more. Dictionary.com
/preÂ·curÂ·sor/ (preÂ´kur-ser) something that precedes. In biological processes, a substance from which another, usually more active or mature, substance is formed. In clinical medicine, a sign or symptom that heralds another.precurÂ´sory.he storm increase, the flashes succeeded one another more rapidly, the thunder began to growl, and the wind, the precursor of a hurricane, whistled in the plumes and the hair of the horsemen.