# Circle to Bar Graph

## Curriculum Goal

#### Kindergarten: Demonstrating Literacy and Mathematics Behaviour

• Collect, organize, display, and interpret data to solve problems and to communicate information, and explore the concept of probability in everyday contexts (#19).

## Context

• Students begin by sitting in a circle. Students will move to tables to work on their circle and bar graph.

## Materials

• Circle graph to bar graph package (Appendix A)
• Pencils and erasers

## Lesson

• Show students the circle graph and explain that this is another way to display information.
• Have students go to different tables and work on translating the circle graph into a bar graph.
• The last page of the circle to bar graph package will have questions about the graph. For example: How many more squares did you have than triangles?
• When students finish filling in the graphs, they can practice asking each other questions about the graph.

## Look Fors

• Can children translate the information from the circle graph onto a bar graph?
• Are children able to come up with questions about the information in the bar graphs to ask other students?

## Extension

• Tooth graph: a magnet with each student’s name on it can be used to represent who has lost a tooth. As a child loses a tooth, they can update the graph.
• Circle weather graph (works best in the month of November, when Canada typically observes the most diverse weather): put a daily mark in the appropriate weather section and have students predict which type of weather they will get the most.
• Siblings graph: ask students how many siblings they have and have them put their mark in the appropriate section.

## Related Lessons

Prior to Circle to Bar Graph: An introductory activity to get students thinking about sorting and learning about graphs which may support student learning in this lesson.

Shares curriculum expectations: Collect, organize, display, and interpret data to solve problems and to communicate information, and explore the concept of probability in everyday contexts (#19).