- For this activity, students are going to hunt through magazines of example of symmetry.
- You will need to prepare and bring a stack of magazines to class. Architecture and nature magazines will be
very helpful. - They are going to create a collage of the pictures that they find.
- Students will need paper, glue, scissors, a ruler and a pencil.
- Students can use pictures that show symmetry of a plane figure and symmetry of a three- dimensional figure.
- When the students select a given picture, they need to cut it out and attach it to the collage.
- Then they draw in the lines of symmetry.
- Students do this until their collage is complete.
- Then have the students write a paragraph explaining their collage- any themes and the types of symmetry
found in the collage. - Allow time for students to share their work when finished.
III.MeetingObjectives
- Students will understand the meaning of symmetry.
- Students will determine all the symmetries for a given plane figure.
- Students will draw or complete a figure with a given symmetry.
- Students will identify planes of symmetry for three- dimensional figures.
- Students will find real- life examples of symmetry.
IV.NotesonAssessment
- Look at student collages.
- Read student descriptions of their collages.
- Develop a grading rubric for the assignment.
- Use observation as a piece of the rubric.
- Were the students organized?
- Were students focused?
- Offer feedback on student work.
Dilations
I.SectionObjectives
- Use the language of dilations.
- Calculate and apply scalar products.
- Use scalar products to represent dilations.
II.ProblemSolvingActivity-DilationDesign
- This activity is an extension of the work that was done in the Differentiation Lesson of the Teachers Edition.
- Students will create two dilations in this activity.
- Students will create a large dilation and a small dilation.
- Tell students that they will be working with the scale factors of^13 and 3.
- Next, students will need a coordinate grid to work with.
- Students begin by selecting a polygon that they would like to work with.
- The students can draw this polygon anywhere that they would like to on the coordinate grid.
- Once this is done, have the students write the coordinates out as a matrix.
5.12. Transformations