Count and graph for the math center — here, the children count each image for the totals. Then, they are to find the range, median, and mode. The range is the highest number minus the lowest number of image types. The median is the middle number in a particular set, and the mode is the number found most often.
When the numbers are written out lowest to highest, what is the middle number? Cross off one at each end until the middle is found such as
2, 3, 4, 5, 6, 6, 7 to easily see the median is 5. Then, since there are two of number 6, so that is the mode for this puzzle.