# 6.18: Bar Graphs

**Teacher Notes**

Students interpret mathematical relationships presented in FACTS and complete bar graphs to match the facts. For each problem, the scale is provided for the vertical axis. Names of people or classes on the horizontal axis are deduced from the facts.

**Solutions**

Use the FACTS and the bar graph to figure out the grade levels.

Write the grade levels on the lines under the bars.

**FACTS**

- There are twice as many grade 1 students as grade 4 students.
- There are 10 more grade 1 students than grade 3 students.
- There are half as many grade 5 students as grade 3 students.
- The total number of student in the 5 grades is 175.

1. Use the FACTS and the bar graph to figure out the names.

Write the names on the lines under the bars.

**FACTS**

- Ella read half as many books as Dora.
- Cal read twice as many books as Abe.
- Bea didn’t read the greatest number of books.
- Together, Bea and Cal read 21 books.

2. Use the FACTS and the bar graph to figure out the names.

Write the names on the lines under the bars.

**FACTS**

- Jack has half as many markers as Neil.
- Together, Jack and Mimi have the same number of markers as Leanne.
- Leanne has twice as many markers as Kent