Bell Ringer Is this someone facing towards you or facing away?

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

DATE: 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 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?

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

OBSERVATION OR 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.