Final answer:
The professor's opinion on a positive model for evangelism was not specified in the materials provided. The professor likely admired missionaries who respected and understood cultural contexts. The qualities of a positive example may include cultural sensitivity and provision of tangible community benefits alongside spiritual teachings.
Step-by-step explanation:
The professor's opinion on a positive model for evangelism was not specified in the available materials, thus it's unclear which exact missionary was discussed. However, the materials do highlight various practices and stances of missionaries throughout history, such as the efforts of missionaries to bring what they considered the 'gifts' of civilization, Christianity, education, and medicine to the peoples of Africa, Asia, and the Pacific. The professor likely referenced missionaries who were culturally sensitive and who worked within the existing traditions instead of outrightly criticizing them, as echoed by community health volunteer Bassirou. It is possible that the missionaries who were considered models of positive evangelism approached their work with an understanding of the cultural contexts and needs of the communities they served. Prominent historical figures such as Augustine of Canterbury, who converted Anglo-Saxons, or women missionaries who later advocated for modernization, also took part in these missionary endeavors; their methods varied from appreciating traditions to integrating Christian ethics with American virtues.
Given that the information provided does not specify a single missionary as the model for positive evangelism discussed by the professor, one can infer that the qualities of a good missionary, according to the professor, might include cultural sensitivity, constructive engagement with existing traditions, and perhaps a holistic approach that includes tangible benefits to the community such as health and education, alongside the spiritual message.