Temperature can be measured using various methods, including oral, rectal, tympanic (ear), and axillary (armpit). Each method has its pros and cons: - Oral: Suitable for older children who can hold the thermometer under their tongue. - Rectal: Most accurate for infants and young children but can be uncomfortable. - Tympanic: Quick and convenient but requires proper technique for accuracy. - Axillary: Less invasive but generally less accurate than other methods.