Oven appliances and methods for displaying pre-cooking progress

An oven appliance comprising:

• a cabinet;
• a plurality of chamber walls mounted within the cabinet, the plurality of chamber walls defining a cooking chamber, the plurality of chamber walls comprising a back wall, a top wall, a first side wall, a second side wall, and a bottom wall;
• a first heating element mounted within the cooking chamber;
• a first temperature sensor disposed within the cabinet to detect a temperature proximal to the first heating element;
• a second heating element mounted within the cooking chamber and spaced apart from the first heating element;
• a second temperature sensor disposed within the cabinet to detect a temperature proximal to the second heating element;
• and
• a controller in operative communication with the first heating element, the first temperature sensor, the second heating element, and the second temperature sensor, the controller being configured to initiate a cooking operation comprising
• directing a pre-cooking setting of the first heating element,
• receiving a first-sensor temperature signal from the first temperature sensor, receiving the first-sensor temperature signal occurring during the pre-cooking setting of the first heating element,
• determining a first progress value based on the first-sensor temperature signal and a first fractional constant, the first fractional constant being a predetermined proportion of a pre-cooking phase,
• receiving a second-sensor temperature signal from the second temperature sensor,
• determining a second progress value based on the second-sensor temperature signal and a second fractional constant, the second fractional constant being a predetermined proportion of the pre-cooking phase, and
• directing display of a progress icon based on the first progress value and the second progress value.