# Venn Diagram

#### 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.

#### Context

Students and the teacher begin by sitting on the floor in a large circle.

#### Materials

• 3 hoola hoops of different colours – yellow, green and red
• Different kinds of leaves or any other sorting material

#### Lesson Introduction

• Lay out the three hoola hoops, making sure they do not overlap.
• Ask “How many hoops do I have? What colour are they?

#### Lesson

• Explain you will be sorting by one characteristic — colour. Ask students which leaves would go in the yellow hoop if they were to sort the leaves. Which go in the green hoop? Which go in the red hoop?
• Tell students not to worry about other colours, such as brown or black. They need to focus on only the three colours.
• Begin to hand out the leaves and have children put their leaf in the appropriate hoop.
• Hand out leaves with two colours on it and ask, “Where does this leaf go? It has both yellow and green on it.”
• Some kids may put it in between two hoops. Ask, “How could we move the hoops so that the leaf could be both in the yellow and the green hoops?”
• They should suggest that you overlap the loops. Do as they suggest.

#### Closure

• Ask the children to double check and make sure each leaf has been put in the appropriate hoop.

#### Extension Lesson and Activity Sorting by two characteristics

• This time use only two hoops and tell the class they will be sorting by two characteristics.
• Ask students what each hoop should represent. For example, the yellow hoop represents colour and the green hoop represents size.
• Have students pick out an object from a mystery box. This box contains different objects that can be sorted by category. For example, animals of different shape, size, kind and colour.
• Ask students to place the objects in the hoop they believe is correct.
• When a student picks something that should be in both hoops ask, “how can we move the hoops so that the material is in both groups?”
• All other material that does not fit into one of those two groups gets put on the outside.
• When all the material has been taken out of the mystery box ask the children to take a look and make sure all the material has been put in the appropriate place.

#### Create you own venn diagram

• Call two to three children at a time and have a variety of different materials available.
• Example: buttons, shapes with different colours and sizes, beads etc.
• Have a venn diagram template on a piece of paper (Appendix A).
• Ask students what material they want to work with and then ask them to choose two different characteristics to sort by (i.e. colours, size, kind)
• Strategically give students a handful of their chosen material and ask them to sort it by their chosen characteristics.
• Take a picture once students have finished.

#### Explaining the venn diagram

• Paste the picture on a different sheet of paper where students can write, “I sorted by ___________ and ________.” (Appendix B)