Enter the classroom silently and find your seat. 1.Take out your HAWK card, agenda, 2 pencils, and your lab report form. 2.Put your backpack along the BACK wall. 3.Write down homework (finish ENTIRE guided notes packet) in your agenda. 4.Stack agendas toward the end of your table group. 5.Wait silently for instructions 7 min AGENDA DO NOW: None Objective(s): SWBAT analyze data to form valid conclusions. SWBAT communicate valid results of their experimental investigation by writing a conclusion based on data using the CER method. DATE HERE Learner Profile: Communicator

Statement of Inquiry/IB Trait STATEMENT OF INQUIRY: Humans explore the relationships among interacting variables and use evidence to impact communities and find functional solutions using scientific and technological advances. IB TRAIT: COMMUNICATORS

I.Do Now II.Analysis III.Guided Practice IV.CER Method V.Guided Practice VI.Parachute Lab Conclusion VII.Exit Ticket VIII.Closing and Questions Conclusions inquiry value “ A subtle thought that is in error may yet give rise to fruitful inquiry that can establish truths of great value.” – Isaac Asimov

Scientific Method Scientific Method The steps of the Scientific Method are: 1.Asking a question 2.Performing background research 3.Forming a hypothesis 4.Testing the hypothesis 5.Analyzing data and drawing conclusions 6. Communicating results

Analyzing Data Scientists take time to look at their data, read and analyze it to determine if the data they collected successfully answers their scientific question. Just because data collected does not prove the scientist’s hypothesis, does not meant that the experiment did not work or did not teach the scientist anything on the topic.

Analyzing Data Today, before you write your conclusion, take some time to look at your data and think critically about it. Consider if the data you collected was valid and if you made any mistakes while collecting your data.

I.Do Now II.Analysis III.Guided Practice IV.CER Method V.Guided Practice VI.Parachute Lab Conclusion VII.Exit Ticket VIII.Closing and Questions Conclusions inquiry value “ A subtle thought that is in error may yet give rise to fruitful inquiry that can establish truths of great value.” – Isaac Asimov

Parachute Lab Guided Practice Parachute Lab As a table group, you will use the guiding questions under the analysis section in your lab report. Think critically about the question and hypothesis you created and the experiment you performed. Voice Level 1 Raise your hands for additional support. 15 min

I.Do Now II.Analysis III.Guided Practice IV.CER Method V.Guided Practice VI.Parachute Lab Conclusion VII.Exit Ticket VIII.Closing and Questions Conclusions inquiry value “ A subtle thought that is in error may yet give rise to fruitful inquiry that can establish truths of great value.” – Isaac Asimov

Scientific Method Scientific Method The steps of the Scientific Method are: 1.Asking a question 2.Performing background research 3.Forming a hypothesis 4.Testing the hypothesis 5.Analyzing data and drawing conclusions 6. Communicating results

Making Claims My Claim: The University of Kansas is the best university in the nation. How valid is this claim? What do I need to back up what I’m telling you about this university? #101 – US News & World Report best universities #47 – US News & World Report best public schools #75 – Washington Monthly best universities 5 time men’s basketball national champion 2008 Orange Bowl (football) champion #1 Loudest college basketball arena

Making Conclusions In science, we make conclusions at the end of an experiment to explain what we learned and to present our data. The conclusion should also tell if your hypothesis was accepted or rejected. – Remember, your hypothesis is an if… then statement about what you think will happen during the experiment.

Making Conclusions After you have performed your experiment, collected data, organized your data, and analyzed it, you can finally decide whether your data proved your hypothesis to be true or false.

Making Conclusions You also need to decide if your experiment was valid or not. Did your experiment test your question? Your results should answer the question you started with. If not, the experiment is not valid. – Example – If your experiment measured how much weight your parachute could hold, it is not valid. – Our question was about the amount of time it would float for, not the amount of weight it would hold.

A good conclusion… A good conclusion – – Accepts or rejects the hypothesis. – Identifies sources of error. – Suggests future experiments.

Turn and Talk Why is a conclusion important to an experiment? 2 min

CER Method When you write your conclusions, be sure to use the CER method. C: Claim – An answer to the investigation’s question E: Evidence – Proof that your claim is correct R: Reasoning – Explanation of why the claim is correct.

Example Mrs. Kerschen-Wright thinks that warm water will evaporate faster than cold water. She sets up an experiment with two containers of water, Container A and Container B. The containers are made of the same material and both have the same volume of water, 25 mL. The temperature of Container A is -15 degrees Celsius, while Container B’s temperature is 25 degrees Celsius. She leaves them for a week to see which one will evaporate faster. Her results are in the table below. Container Volume of Water (mL) Temperature (°C)Time Required (h) A B25 24

Example Scientific Question: – Does the temperature of water affect the time it requires to evaporate? Hypothesis: – If the water is warm, then it will evaporate quickly. Independent Variable: – The temperature of the water Dependent Variable: – Time required to evaporate Constant Variables: – The container material, volume of water, room conditions.

Example Was my hypothesis proven? How do we know? – My hypothesis was “If the water is warm, then it will evaporate quickly. Yes, my hypothesis was proven because the container of water that was 25°C evaporated more quickly than the container of water that was -15°C. Container Volume of Water (mL) Temperature (°C)Time Required (h) A B25 24

Example Conclusion – My hypothesis was, if the water is warm, then it will evaporate quickly. Based on the experiment, my hypothesis was proven and warm water did evaporate more quickly than cold water. The results of the experiment show that a container with 25 mL of water at -15°C took 72 hours to evaporate while a container with 25 mL of water at 25°C took only 24 hours to evaporate. When water is warm, the particles move quickly. When the particles are moving quickly, the water is able to evaporate more quickly than if the water was cold. There were no sources of error in the experiment. In future, the experiment could be further proven by performing more trials and testing different amounts of water. Container Volume of Water (mL) Temperature (°C)Time Required (h) A B25 24

I.Do Now II.Analysis III.Guided Practice IV.CER Method V.Guided Practice VI.Parachute Lab Conclusion VII.Exit Ticket VIII.Closing and Questions Conclusions inquiry value “ A subtle thought that is in error may yet give rise to fruitful inquiry that can establish truths of great value.” – Isaac Asimov

Guided Practice 15 min Let’s look at a scientific investigation and a graph. We’ll use our knowledge about the CER Method and writing conclusions to write our own conclusion based on the data.

Reggie has been observing recycling patterns in his neighborhood. He thinks that there is more recycling done at the beginning of the week than the end of the week. Reggie counts the amount of aluminum collected on Monday, Wednesday, and Friday of one week. The graph to the right shows the amount of aluminum collected during one week for recycling. Mass (kg) Day of Collection MondayWednesdayFriday 1. Use the CER Method to write a conclusion from Reggie’s data. Guided Practice 15 min

Turn and Talk claim As a table group, work together to come up with a claim based on the data provided to you in the graph. 3 min

Turn and Talk evidence As a table group, work together to come up with evidence from the graph to support your claim. {Explain the entire data table in words.} 5 min

Turn and Talk reasons As a table group, work together to determine the reasons why the evidence supports the claim. {Be sure to tell if the hypothesis was supported or not and include suggestions for future experiments.} 3 min

I.Do Now II.Analysis III.Guided Practice IV.CER Method V.Guided Practice VI.Parachute Lab Conclusion VII.Exit Ticket VIII.Closing and Questions Conclusions inquiry value “ A subtle thought that is in error may yet give rise to fruitful inquiry that can establish truths of great value.” – Isaac Asimov

Making Conclusions The final section of your lab report is the Conclusion section. There are also several guiding questions to help you write the conclusion. Use what you learned about the CER method to help guide you as you are completing it. 15 min

Parachute Lab Independent Practice Parachute Lab Now that you have a rough draft, you will create your final draft independently. Remember to write in complete sentences and fully answer every question. Focus on the CER Method to form your complete responses! Voice level 0 15 min

I.Do Now II.Analysis III.Guided Practice IV.CER Method V.Guided Practice VI.Parachute Lab Conclusion VII.Exit Ticket VIII.Closing and Questions Conclusions inquiry value “ A subtle thought that is in error may yet give rise to fruitful inquiry that can establish truths of great value.” – Isaac Asimov

Complete the exit ticket silently and stack at your table group when you are finished. You may pack up your things. Exit Ticket 5 min

I.Do Now II.Analysis III.Guided Practice IV.CER Method V.Guided Practice VI.Parachute Lab Conclusion VII.Exit Ticket VIII.Closing and Questions Conclusions inquiry value “ A subtle thought that is in error may yet give rise to fruitful inquiry that can establish truths of great value.” – Isaac Asimov

STOP Cards SSummarize: Summarize the day’s lesson and what we learned. TTrait: What IB trait relates to the lesson? OObjective: Re-state in your own words and say whether or not we met that objective for the day. PPurpose: What was the purpose of this lesson?

Exit Procedure SILENTLY 1.Pack up all of your things. 2.Wait for teach directions to: 1.Push in your chair. 2.Form a line at the door. 3.Silently exit the classroom. 3.Hallways are a Level 1 (whisper)