Circle to Bar Graph

Curriculum – Data Management and Probability 

For students to sort, classify, and display a variety of concrete objects, collect data, begin to read and describe displays of data, and begin to explore the concept of probability in everyday contexts.


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



  • Have students go to different tables and work on transcribing the circle graph onto the bar graph.
  • The last page of the circle to bar graph package will have questions about the graph.
    • For example: How many more robins did you have than cardinals?


  • Choose a characteristic (i.e. hair colour) and begin to sort children in columns. If you are sorting by hair colour, you might have three different columns – brown, blonde, and red.
  • Ask children to stand in a straight line just like a soldier.
    • Ask children what characteristic you have sorted by.
  • Ask children to sit in a circle and take off their shoes.
    • Put the shoes in a big pile.
    • Ask: “Is it easy to see to count the shoes when they are in a big pile?” Listen to their feedback.
  • Put the shoes in a straight line.
    • Ask: “Is it easier to count the shoes when they are in a straight line?”
  • Have students sort their own shoes using different characteristics (i.e. colour, size).
    • Children will take turns putting their own shoes in the appropriate column.


  • When students finish filling in the graphs, they can practice asking each other questions about the graph.

Extension Activities
Tooth Graph

  • Have tooth graph going throughout the year.
  • Each child should have their own magnet with their name on it. As they loose a tooth they can move their name to the appropriate column.
  • For example the graph can have the numbers 0 – 5 along the bottom.

Circle Weather Graph

  • This works best in the month of November because in Canada that is typically when we witness the most diverse weather.
  • Each day look out the window and put a mark in the appropriate section.
  • Have students predict which type of weather they will get the most of in November.

Siblings Graph

  • In small groups, build a sibling graph.
  • Ask students how many siblings they have and have them put their mark in the appropriate place.
Based on JICS Kindergarten Teacher Carol Stephenson’s Mathematics Lesson