This type of graph is a line graph, a line graph is used to show change over time. The features of this graph are the temperatures ( on the vertical axis) and the years which are on the horizontal axis. This graph is the best option for this data because it shows the average global temperatures over the years of 1860, 1880, 1900, 1920, 1940, 1960, 1980, 2000 and line graphs are the best option for showing change over time.
Summary: We found the activity a little bit challenging when we had to figure out which shape went with which number. We thought it was easier to work with the higher numbers first. There were a lot of other ways to work out the answer but we chose a way we all understood.