Grade
5

Same & Different: Triangle Tangle

Look at the two pictures. What do you notice?

A: Four right triangles. 2 of the triangles have 2 congruent sides and 2 do not. B: Four obtuse triangles. 2 of the triangles have 2 congruent sides and 2 do not.
  1. How are pictures A and B mathematically the same, and how are they different?
    • A and B are the same because …
    • A and B are different because …
  2. Make a third set of shapes. Explain how your picture is the same as pictures A and B, and how it is different.
Printable Version

Google doc for printing and copying

Reference for Educators

Sample problems and solutions