1. Vocabulary byte - The technical term for 8 bits of data.
The standard fundamental unit (or “chunk size”) underlying most computing systems today measured in “megabytes”, “kilobytes”, “gigabytes”, etc.
Image - A type of data used for graphics or pictures.
metadata - is data that describes other data. For example, a digital image my include metadata that describe the size of the image, number of colors, or resolution.
pixel - short for "picture element" it is the fundamental unit of a digital image, typically a tiny square or dot which contains a single point of color of a larger image.
RGB - the RGB color model uses varying intensities of (R)ed, (G)reen, and (B)lue light are added together in to reproduce a broad array of colors.
Lossless Compression - a data compression algorithm that allows the original data to be perfectly reconstructed from the compressed data.
Lossy Compression - (or irreversible compression) a data compression method that uses inexact approximations, discarding some data to represent the content. Most commonly seen in image formats like .jpg.

2. U2L7: Introduction to Data
CS Principles
U2L7: Introduction to Data

3. U2L7: Introduction to Data Objectives
SWBAT:
Develop a hypothesis about student behavior over time, based on a small sample of data.
Describe sources of data appropriate for performing computations.

4. U2L7 Content: Data Collection
You will be collecting and analyzing their own data in a couple weeks.
Begin thinking about the many ways data impacts your lives and how it can be used.
There are many places where you can start asking interesting questions about where and how data is collected, who is collecting it, and how they are using it.

5. Left vs Right Brained U2L7 Prompt1:
Follow the following link and take the right vs left brain quiz:
This unit will address the topic of data more deeply. In computing, we’re interested in where data comes from, what structure or formats it comes in, and most importantly, what kind of knowledge or information we can extract from that data using computational tools.
U2L7 Prompt1:
"People say there is data all around us. What do you think that means? Brainstorm as many examples of data as you can think of."

6. Complete this survey U2L7 Prompt2:
You are going to complete this survey every day in class for the next several weeks. By the end, we should have several hundred entries.
U2L7 Prompt2:
What do you think we might be able to find out in a few weeks?