Please do the following Take out stamp calendar; study guide; vocab & answers to Simpson w/s 1.Record calendar 2.Update table of contents 3.Record objectives 4.Simpson w/s will be, corrected & turned in. 5.I will stamp your study guides tomorrow

TODAY’S AGENDA: Warm up – types of data (20) Data tables notes & ques 10) Data collection Activity (20) 28AugustT Today’ objectives: 1.Create Data Table and collect data from an experiment Finish Simpsons WS ESLRs Addressed: 1. Achieve Academic proficiency 2. Communicate Effectively 3. Demonstrate Civility

Understanding Experiments - correct your work using different color pencil/ pen 1.Group B is the control 2.Special Juice is the independent variable 3.# of stacks of paper made is the dependent variable 4.Conclusion: The special juice makes a difference. 5. Give the control group a placebo.., repeat the experiment using a different task. Repeat the experiment but give group B the special juice and A nothing.

Understanding Experiments 6. The observation is Homer notices slime in his shower. 7. The control is the ½ of the shower that does not get treated w/ coconut juice, but with water. 8. The cocoanut juice is the independent variable. 9. The presence of slime/changes in slime is the dependent variable 10. Coconut juice does not affect slime is the conclusion.

Understanding Experiments mice not put in the microwave are th control 12. Exposure to microwaves is the independent variable. 13. Strength of mice (ability to move a wooden block) is the dependent variable. 14. Conclusion is that microwaves do not appear to have an impact on mice strength 15. Identical mice, mice that are on the same feeding schedule (equally hungry), more mice.

Understanding Experiments 16. The control is Subject A (original itching powder). 17. New Itching powder is the independent variable. 18. Degree & length of itch on subject is the dependent variable. 19. Yes, the data supports the claim but the data is not very conclusive because of the sample pool is too small.

Understanding Experiments 20. Control group a portion of each subject’s head that will not receive the hair tonic. The area should be the same size and in the same location on each person. Experimental group (independent variable) – a portion of each person’s head that will receive the hair tonic. The area should be the same size and in the same location on each person. The same amount of hair tonic should be used on each person each application. Dependent variable – measure hair growth in each area and compare. TURN THIS ASSIGNMENT IN!

Notes - Data What is data ? Data is information that you collect during observations & experiments. Data is often measurements – such data is __________________. ( some examples from the peacock) Data can sometimes be more about what you observe via your senses without measuring any thing –this is ________________ data. ( some examples from the peacock) Data, especially measurements, (if done correctly) are FACTS.

Warm up – TYPES OF DATA – 15 min; get stamp Turn to page 4. Write the title warm up in your spiral. Read the page then do the following….. 1.List & define the two types of data. 2.Carefully study the picture of the peacock (fig 1-1 pg 3). Write down 3 qualitative observations that could be made of the peacock. 3.Carefully study the picture of the peacock. Write down 3 quantitative observations that could be made of it. 4.Close book but do not put it away yet! Get stamp!

Thinking out loud about data Experiments usually generate some type of data. The data then helps us evaluate our hypothesis so it is important that when we collect our data and present it, we do so in a way that keeps it organized & meaningful. This part of the lesson will focus on how to organize data

Presenting data – data table construction – follow CC. – 15 min get stamp Write the above title (in blue) in your spiral. Turn to page R15 and read the left hand column about data tables, then answer the following questions in your spiral. 1.How is the independent variable listed in a data table? 2.How is the dependent variable listed? 3.What is at the top of each column? 4.If units are used in the data, where are they placed? 5.What should all data tables also have and what should be communicated in it?

Lets do a simple experiment & collect some data! The title of your experiment….. Is a person’s dominant hand in better shape than their non-dominant hand? In this experiment we will be testing how long it takes each of your hands to get tired…. Here’s how….

Experiment Summary A member of your group will squeeze a clothes pin using only their thumb and index finger of their dominant hand as fast as they can for 60 seconds. A partner will count the number of compression every 10 seconds. There is to be no rest for the subject. The count is continuous as well. The subject will then repeat the experiment using their non-dominant hand.

Before we do the lab we need to make a data table – to do that we need to know the answers to these questions.. think about these questions - 1.What is the independent variable? _____________ 2.What is the dependent variable (what are we measuring?) _________________ 3.How many sets of data are we collecting? 4.What should go at the heading of each column? 5.What would be a good name for the data table (hint look at the information in it). Design your data table so it contains all the answer all these questions as part of its construction.

For the experiment you will work in groups of 4 Each student has a job 1 student is the subject – you squeeze the clothes pin as fast as you can. (#3) Another student is timer – time runs continuously, each ten seconds you will call “time”. At the end of the experiment your stop watch will show 60 seconds. (#1) A third student counts. – begin counting at one – when the timer calls time – shout out the number you are on. You never start your count over. (#2) A fourth student records the number the counter calls out. (#4) At the end of the experiment – the data is shared.

Lets do the expeirment You have 5 minutes to collect your data – and share it among your groups members (all students must copy the data) When you are finished, place your materials back on your number, return to your seat and get a stamp. This stamp will be for both the data table construction and the data collection.