Reading bar charts 2

The topic  appears under the 6th Grade Math Mission. This exercise continues practice with reading bar charts and requires analysis of information from different bars in the bar chart.

Types of Problems
There are three types of problems in this exercise:


 * 1) Find the student that changed: This problem has a bar chart drawn with two bars for each student, a midterm and a final exam score. The student is asked to find the student that changed by the most or the least.Rbc2-1.png
 * 2) Find the points of change: This problem has a bar chart drawn with two bars for each student, a midterm and a final exam score. The student is asked to find the number of points by which a particular student changed.thumb|Find the points of change
 * 3) Count the students that changed: This problem has a bar chart drawn with two bars for each student, a midterm and a final exam score. The student is asked to find the number of students that improved or went down between the exams.thumb|Count the students that changed

Strategies
Counting is necessary and an ability to read bar charts is an advantage to doing this problem well.
 * 1) The majority of problems seem to be about improvement, but this could change.