Shape 

Copyright David & Cynthia Thomas, 2009

 

Classification & Hierarchical Relationships--Directed Activity: Sorting by Attributes

 

The directed activity in this section provides a context in which to investigate the question:

·        What relationships exist between triangles with different side and angle characteristics?

                   

Focus

Attributes of triangles

Technologies

·        Paper & pencil

Background

Figure 2.24 shows a set of triangles.

Figure 2.24: 

 

Tasks

·        Sort the triangles in Figure 2.24 using two different sorting descriptors.

·        Explain each strategy.