Jeff
Li MTP
KIPP Infinity Charter School,
NEW YORK,
NY

8th Grade Math :
Unit #8 - CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS :
Lesson #16

Objective:
SWBAT understand what happens when a series of translations, reflections, rotations, and/or dilations is performed on a figure.

1 Warm Up -
10 minutes

Each day, students complete a warm-up that usually consists of spiraling the previous day's material, in addition to older material. Warm-up problems also sometimes extend lessons that students have encountered before to more unfamiliar contexts.

For a video narrative about how I structure each lesson, and how the warm-up fits in, click here.

resources

8 - 16 WU115 Series of Transformations of similarity.docx

https://betterlesson.com/lesson/resource/2024529/8-16-wu115-series-of-transformations-of-similarity-docx
8 - 16 WU115 Series of Transformations of similarity.pdf

https://betterlesson.com/lesson/resource/2024528/8-16-wu115-series-of-transformations-of-similarity-pdf
2 Play of the Day -
40 minutes

8 - 16 VN115 Series of transformations of similarity.MOV

https://betterlesson.com/lesson/section/6458/series-of-transformations-that-lead-to-similarity
resources

8 - 16 POTD115 Series of transformations of similarity.docx.doc.docx

https://betterlesson.com/lesson/resource/2024527/8-16-potd115-series-of-transformations-of-similarity-docx-doc-docx
8 - 16 POTD115 Series of transformations of similarity.docx.doc.pdf

https://betterlesson.com/lesson/resource/2033176/8-16-potd115-series-of-transformations-of-similarity-docx-doc-pdf
8 - 16 Student work sample.pdf

https://betterlesson.com/lesson/resource/2024011/8-16-student-work-sample-pdf
3 Huddle -
10 minutes

For the huddle in this lesson, I ask kids to come up with multiple ways to demonstrate compound transformations, and it's really cool the kinds of things they come up with.

See the student samples for some ideas.

I push kids also to be VERY precise about their explanations... how much of a translation? In which direction? Reflection over what line, exactly? This is really, really important.

resources

8 - 16 image - series of transformations of similarity.pdf

https://betterlesson.com/lesson/resource/2024014/8-16-image-series-of-transformations-of-similarity-pdf
8 - 16 student work sample dilation translation 2.pdf

https://betterlesson.com/lesson/resource/2844145/8-16-student-work-sample-dilation-translation-2-pdf
8 - 16 student work sample flexible.pdf

https://betterlesson.com/lesson/resource/2844147/8-16-student-work-sample-flexible-pdf
8 - 16 student work sample dilation translation.pdf

https://betterlesson.com/lesson/resource/2844146/8-16-student-work-sample-dilation-translation-pdf
8 - 16 student work sample good notes on side.pdf

https://betterlesson.com/lesson/resource/2844148/8-16-student-work-sample-good-notes-on-side-pdf
8 - 16 student work sample SILVER.pdf

https://betterlesson.com/lesson/resource/2844149/8-16-student-work-sample-silver-pdf
8 - 16 student work sample WRONG - good misconception.pdf

https://betterlesson.com/lesson/resource/2844150/8-16-student-work-sample-wrong-good-misconception-pdf
Student work samples - creativity! 2

High Quality Task

In this unit, I LOVE using student work samples to demonstrate creativity, inspire other students, and even learn myself, as the kids never cease to amaze me with their brilliance.

It also reinforces the idea of solving something in multiple ways... and students get to see how the four transformations relate to each other.

Check out the attached samples in the resource section.

10 DIFFERENT WAYS TO SOLVE A TRANSFORMATIONS PROBLEM.docx

https://betterlesson.com/lesson/resource/2844153/10-different-ways-to-solve-a-transformations-problem-docx
4 Homework -
15 minutes

Homework is to be completed at home and should take students approximately 15 minutes.

resources

8 - 16 HW115 Series of transformations that lead to similarity.docx

https://betterlesson.com/lesson/resource/2024013/8-16-hw115-series-of-transformations-that-lead-to-similarity-docx
8 - 16 HW115 Series of transformations that lead to similarity.docx.doc.pdf

https://betterlesson.com/lesson/resource/2024525/8-16-hw115-series-of-transformations-that-lead-to-similarity-docx-doc-pdf