Yes. I first came across this discrepancy while grading exams for primary school students in Burundi. In Burundi, a small country in east Africa, people learn that there are only five continents. North and South America are collectively referred to as "Amerique" (America) and Antarctica is not counted. read more
Wikipedia has a page on continents Continent - Wikipedia Interestingly, it says several countries teach that there is one continent, “The Americas”, while most other consider it to be two continents. read more
The Americas (also collectively called America) comprise the totality of the continents of North and South America. Together, they make up most of the land in Earth's western hemisphere and comprise the New World. read more
I've always considered North and South America as two separate continents no more joined then the others. However they are sometimes referred to as one continent as in "the americas" or even just "america". read more