Math Arguments
Problems, Questions, and Puzzles to spark discussion and argument in the maths classroom.
Three Angles Revisited
I had asked "Is this really ok for a fifth-grader?
Five Triangles said, "We posed the question slightly differently, our diagram providing an important hint to bring it to a more manageable level for younger problem solvers."
Find \(x+y+z\)
What do you suppose the "important hint" was?
.
Source:
Five Triangles
More Information:
++