Sunday, November 6, 2011

Confused, restating what we found on our shared sheet

In my group I was assigned to look over the NCTM standards and I chose the following:
Apply transformations and use symmetry to analyze mathematical situations.
Grades 6–8 Expectations: In grades 6–8 all students should:
  • describe sizes, positions, and orientations of shapes under informal transformations such as flips, turns, slides, and scaling;
  • examine the congruence, similarity, and line or rotational symmetry of objects using transformations.
I felt that the NCTM were vague like the ones we selected.
My partner online/shared sheet found the following and we compared the two.Draw construct, and describe geometrical figures and describe the relationships between them.Solve real-life and mathematical problems involving angle measure, area, surface area, and volume.

I felt that the three we found fit together well. The standards from all seem very vague and general. In which we selected the ones in which fit the best together.

With our NCTM standard we were assigned to go over the khan website and find a video in which supports our lesson/standard. We chose http://www.khanacademy.org/video/similar-triangles?playlist=Geometry because our subject was geometry.
This video  is direct instruction and a great introduction into triangles. Although I am not sure I would use this lesson, I like what is being taught, I don't necessarily agree with the use of technology in this case.


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