1. Pellagra
7th Grade Science

2. Write in Notebook:
What are the common elements of all scientific problem solving methods?

3. Setting Up
Go to Index and add under “S” Scientific Method & under “H” Hypothesis and list page #1 after them.
In Table of Contents add “Pellagra”, date it and give it the appropriate page number.
Go to that page and title it “Pellagra”

4. Define observation:
Define inference:
From this picture I made the following 3 observations: 
From this picture I made the following 3 inferences:

5. Warm-up:
2.) Name 3 observations and 2 inferences about the picture.

6. Background on Pellagra
Getting Started
Background on Pellagra
Challenge Question: What are the common elements of all scientific problem solving methods? (Write Question and answer it!)

7. Getting Started
Imagine that doctors are observing a new disease, and they don’t know what causes it. What are some possible causes of diseases?
What kinds of things would scientists do to learn more about a disease and its cause or causes?

8. Doing the activity Review video questions on handout
You will view the video two times. The first time just watch it and the second time you will take notes. (5:30 sec)

9. Follow up Observations vs. Inferences
Add these two words in your Index/glossary and give the page # for “Pellagra”
Complete the observations vs. Inferences sheet on your handout

10. Analysis Questions Assessment system introduction
Use Writing Frame to answer Analysis Question 2b, this will help you identify key components (information) necessary for a complete answer.
Discussion on what a level 3 is comprised (Made-up) of.

11. Analysis Question
Trade-off -something given up in selecting one alternative over another. Write the above definition in journal and Index
Fast food example
In this way, a tradeoff of one particular decision is often the advantage of another option or options.

12. Analysis Question Complete analysis question 6
To write a complete answer, first state your opinion. Provide two or more pieces of evidence that support your opinion. Then consider all sides of the issue and identify the trade-offs of your decision