In an earlier post I wrote about my 7th grade math interactive notebook pages on triangles. The pages on this post continued our study of polygon properties and angle measurements. To begin, we defined the term and used a T-chart to write properties and draw examples and non-examples of polygons. We also defined regular polygons which we used in the chart on the next two pages.
As you will notice I don't always stick to the idea of putting information on the right page and student reflection on the left. Sometimes, I just have more to show them than that, and sometimes I have more reflecting and practicing for them to do than will fit on one page.
As you will notice I don't always stick to the idea of putting information on the right page and student reflection on the left. Sometimes, I just have more to show them than that, and sometimes I have more reflecting and practicing for them to do than will fit on one page.
On the next two pages we made a chart of polygons. There are columns for the number of sides and angles, the polygon name, and sketches of the polygon. Drawing regular polygons would be difficult, so I copied them for us to cut out and glue on the chart. At the end of this post there is information about the book where I got the page I copied.
As I mentioned above, before this lesson we had studied the measurement of the interior angles of triangles and quadrilaterals. Earlier in the year my 8th grade math class created "Geome-TREEs" using two pages of their notebooks. Because of spacing for the pages in this class, the 7th graders only used one page, and I made a couple tweaks to improve the quadrilateral tree. We connected the kite to the rhombus and square using the kite tail because both of these figures are also kites. Click on the link to see my original post and description of the "Geome-TREEs."
The students used their knowledge of the measurement of the interior angles of triangles and quadrilaterals to help determine the measurement of the interior angles of a regular pentagon. I loved to see my students flip back and use pages they created in their notebooks to help them with the new lesson. One of my favorite parts of using these notebooks is watching them actually use the pages as a reference.
Our textbook also introduces tessellations at this point, so I included the definition on this page. It ties the polygon lessons with the notebook entries for transformations.
Our textbook also introduces tessellations at this point, so I included the definition on this page. It ties the polygon lessons with the notebook entries for transformations.
| The regular polygons I used in the T-chart above were copied from a page in Getting Smarter Every Day Book E Grades 6-8. I love this book and use several pages from it for various activities. I also used this book forinteractive notebook pages on transformations and tessellations. There are versions of this book for various grade level groupings. | |
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