Measuring temperature can help decide whether someone has a fever, if it's a good day for a picnic, and whether dinner is done cooking. Readers will cover many aspects of measuring temperature, including how a thermometer works and the most common scales of measurement, Celsius and Fahrenheit. Fun facts and related math problems featured throughout will engage readers while they learn a key math concept, and a concluding hands-on activity will give them a chance to test out their new knowledge.