The Ithaca High School Geometry Blog

Hi everybody who is bored enough at home today to check my edublog!

I know you are all as disappointed as I am that we didn’t have school today, but we just have to take these things as they come.

I’ve kept busy today grading tests and fun stuff like that. I’m sure you’ve been just as productive as I have.

Okay, truth be told, I took a two-and-a-half hour nap this afternoon, and man, did it feel great! Slept right through both geometry classes!

Below is part of what I was going to assign for homework today, if I hadn’t slept through class. It is vocabulary, and I’m not planning on checking or collecting it. Honestly. However, it is in your best interests to know these words, and one of the best ways to learn vocabulary is to write out the words and what they mean. More than just reading the definition, the process of manually writing out the meanings forces your brain to process the ideas one or two steps further than if you just look at ink on a page. And then you remember them better.

Hope this help keep you from being so bummed about missing geometry class today.

Chapter 9—Properties of Transformations
Vocabulary Assignment #1

Some of the vocabulary comes from Lesson 4.8 starting on page 272 and from Lesson 6.7 starting on page 409.

Define or make a sketch of the following terms:

Transformation
Coordinate notation for a translation
Image
Translation
Reflection
Rotation
Congruence transformation
Dilation
Reduction
Enlargement