Solving problems with bar graphs 3

The first instance of  is under the 3rd Grade Math Mission. In this exercise students practice interpreting and reading bar charts.

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


 * 1) Find numerical answer: This problem asks the student to use a bar chart to find the numerical answer to a question. The answer is typed into an answer box.Bargraph3-1.png
 * 2) Multiple select interpretation: This problem asks the student to use a bar chart and select all things that satisfy some given condition.Bargraph3-2.png
 * 3) Select from drop-down: This problem asks the student to use a bar chart and select the option from a drop-down menu that correct answers a question.Bargraph3-3.png

Strategies
This exercise is easy to get accuracy badges because graphs and labels are very clear. Speed badges are medium because there are different problem types to be ready for.


 * 1) It is slighter easier (and hence faster) to count the spaces on vertical axis and then use the scale to multiply to certain answers.
 * 2) Problem type three is the fastest to answer and can be done as fast as you can read.