Bell Ringer

Is this someone facing towards you or facing away?

Write the Question on top margin of page 24 and Answer the following in the top margin of the left side of your Interactive Journal on page 23

Who killed Mr. Xavier?10 minutes

Quick Write

• Honor time limits

• Actively participate

• Listen respectfully to your colleagues

• Place cell phones on vibrate or silent mode• Participants may write burning questions on a sticky note and place on the parking lot• BE PRESENT

Class Norms

Common Board ConfigurationDATE: August 22, 2014

ESSENTIAL QUESTION:

How could I use observations and inferences to understand the natural world?

Objectives:

Distinguish between scientific observations and scientific inferences

Make scientific inferences from scientific observations

Home Learning:

Finish pages 20, 21, and 23 in your ISN

Agenda

Interactive Journal Review Setup

Observations vs Inferences

Complete Observation activity in ISN

Exit Ticket

ESSENTIAL QUESTION

How could I use observations and inferences to understand the natural world?

Parking Lot

Burning Issues

Questions

Comments

Ideas to Share

Observations

How we look at things in science

What is observation?

• Observations are made in science. They are made by using:

• Senses • Tools

– increase accuracy & precision • Facts not opinions.

Two types of Observation

• Qualitative

• Quantitative

Qualitative Observations

• Hard to measure• Describes the qualities of something

– Color– Taste– Sound

Quantitative Observations

• Can be expressed in numbers• Can be counted or measured

– Amounts– Temperature– Mass – Length

• Allow us to communicate specifics• Tools are used to communicate data• Observations are collected in data tables

Inferences

A statement based on your interpretation of the facts

Look at the chart above and say the COLOR of the word, not the word

itself.

Because the right half of your brain

is trying to say the color, while the left side of your brain

is trying to say the word.

Why is it so difficult?

Inference

• Drawing a conclusion based on data and observation

• The process of drawing a conclusion from given evidence.

Practice: • Observations:

• I hear people screaming• I smell cotton candy, popcorn, and hamburgers• I see a lot of people

• Inference = ?

Observation Inference

• That plant is extremely wilted.

• The car stopped running

• The Diamondbacks are leading their division

• That plant is extremely wilted due to a lack of water.

• The car stooped running because it was out of gas.

• The Diamondbacks are leading their division because they are playing well right now.

Observation or

Inference

1. There is a representation of a face on one side of the coin.

2. The Latin word "Dei" means "God.“

3. The coin was made by deeply religious people.

4. The date 1722 is printed on one side of the coin.

5. The coin was made in 1722.

6. The face on the coin is a representation of the nation's president.

OBSERVATIONOR

INFERENCE

Let’s Practice…. Look at the picture & decide if the statement is an

Look at these two sets of animal tracks.

In your ISN on page 23

List 3 OBSERVATIONS

Make an INFERENCE

Now what do you think?

Make 3 OBSERVATIONS

Make an INFERENCE

Now what do you think?

Make 3 OBSERVATIONS

Make an INFERENCE

• Discuss with your shoulder partner the observations and inferences you have made.

• In your science notebook on page 23, write your conclusion.

Activity Page

When to use observation & inference…

• During experiments, record observations NOT inferences

• Inferences may be used when writing the conclusion in your lab report.