This is Mrs. Mayer here, reporting on our first week of Geometry exploration!
We started talking about Geometry on Tuesday, February 8. We began by defining the three main parts of an angle: two lines called arms with a common endpoint called a vertex. Colby and Reese were kind enough to come up in front of the class and help me demonstrate the concept of angles using their elbows as the vertex and their arms as the ARMS! Next we noticed as a class that an angle could change in size when Colby extended his arm out and brought it back in toward his head. Excitement was in the air as we left the classroom and went on an angle hunt around the school. The students sketched different types of angles that they found in their environment.
On Wednesday we remembered back to other times and subject areas where we had used classification systems to break information down into smaller categories. The students worked in groups to sketch their angles onto small cards and find ways to separate them. There were a lot of suggestions, but we decided that the best way was to look at their size. As a class, we found four groups and I helped them to name them: acute, obtuse, right, and straight angles.
Today we read a great book that Daniel shared with us. It is titled Sir Cumference and the Great Knight of Angleland. The kids really enjoyed hearing about the journey of Sir Radius and discovered that his medallion was actually a tool used to measure angles (protractor). They also found out that there were a lot of puns in the story and we stopped many times during the read aloud to link back to our new knowledge about angles.
**Homework sheets were given out today and even though it says that they are due Friday they are actually not due back until Monday, February 10, 2010. It should be fun and will allow the students the opportunity to continue seeing angles in their world.
Tomorrow... our exploration continues to circles!
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