G1Project!–!Tessellations!Part!3!lincolngeo.weebly.com/.../g1_tessellationproject.pdf ·...
Transcript of G1Project!–!Tessellations!Part!3!lincolngeo.weebly.com/.../g1_tessellationproject.pdf ·...
G1 Project – Tessellations Part 3 For this project you will create an image that involves transformations of a repeated pattern. In part 1 and part 2 you explored the history and math behind tessellations and started to sketch some ideas of your own. Now you will decide on a final design and analyze the geometry that structures it. Instructions Step 1: Decide on the pattern that you will repeat. We will discuss this further in class. Step 2: Make a draft of your tessellation in pencil on notebook paper. Step 3: Transfer your final design onto a large piece of paper in pencil. Make sure you have a good idea of the different transformations involved in your design before you finalize it. Step 4: Impose a coordinate grid and scale (inches or centimeters) over your design. Decide where the x-‐ and y-‐axis run through your image and where the origin (0, 0) is. You may want to sketch it very lightly over your design or mark the x-‐ and y-‐axis on the edge of the paper. This will help you describe the transformations and symmetry in your design, like you did in the Desmos Activity. Step 5: Determine how you can transform your tessellation (translate, reflect, rotate, and/or dilate) so that it remains the same. In other words, how is it symmetric? Look for rotational symmetry, lines of symmetry, and translations that do not change the image. On a separate piece of paper, describe these transformations in detail using units (inches or centimeters) and equations when necessary. For example, write something like, “If I translate the pattern 3 inches to the left and 2 inches down then the image stays the same.” Another example: “Reflect the image over the line y = x.” Note: You may need to combine transformations in order to do this. Step 6: Write coordinate rules for the transformations that you described in step 5. For example, write something like, “Rotate the image 90 degrees clockwise about the origin (0, 0) using the coordinate rule (x, y) à (-‐y, x). Step 7: Finalize your image. Add color if you haven’t yet. Step 8: Submit Part 1 and Part 3 together on September ? (A day/B day).
Scoring and Due Date This project is G1 Assessment 2. It will be scored on the proficiency scale (1 – 7). The level of creativity, organization, challenge, and mathematical analysis involved in your project will determine your score. Both part 1 and part 3 of the project will be due September ? (A day/B day). Challenge yourself:
* Create a tessellation that involves rotation (rotational symmetry). * Create a tessellation that involves dilation. * Be comprehensive in how you describe the transformations. For example, there will probably be many ways to translate your image so that it is unchanged. How can you describe all of these translations in a single statement or coordinate rule?
Examples of tessellations with rotation: Example of tessellation with reflection:
Example of tessellation with dilation:
Resources: Basic Tessellation https://www.youtube.com/watch?v=Lc4LGZwlcvs Rotational Tessellation https://www.youtube.com/watch?v=5LpokUCzjm8