DO NOW Directions: Fill in your Weekly Do Now sheet, then answer the prompt.
Objective Students will be able to distinguish between an observation and an inference.
Do Now Prompt
In the picture to the right….
What do you OBSERVE (see)
and what can you INFER (predict)
Is happening?
Sept. 3rd, 2013
Cedillo
ESSENTIAL QUESTION:What is the difference between an observation and an inference?
AGENDA:-Use observations and inferences to create a model of the inside of the “Mystery Box”-Define observation and inference-Learn how to create a concept map
Sept4th
Mystery Box – Pg. 7OBSERVATIONS INFERENCE
-RECORD WHAT YOU OBSERVE IN THIS BOX
-USE YOUR OBSERVATIONS TO CREATE A DRAWING OF WHAT YOU THINK THE INSIDE LOOKS LIKE
ESSENTIAL QUESTION:What is the difference between an observation and an inference?
OBJECTIVE:-Distinguish between an observation and an inference.
DO NOWObjective SWBAT distinguish between a descriptive, comparative, and experimental
investigations.
Prompt
Using observations, describe your teacher. What inferences can you make about your teacher from your observations?
Reminders: --Enter quietly--Sharpen pencils and have materials out and ready *BEFORE* bell rings--Be in seat working on Do Now with voice level 0 when bell rings--Make sure homework is written in agenda for this week.
Today’s AgendaESSENTIAL QUESTION:What is the difference between a descriptive, comparative, and experimental investigation?
Agenda:-Use observations and inferences to conduct and descriptive investigation of Turk’s Cap.-Conduct a comparative investigation of Turk’s Cap and the Siberian Iris.-Look at an example of an experimental investigation-Fill out a Mind Map to organize information about scientific investigations.
Descriptive Investigation
Dr. Damian Elias: http://nature.berkeley.edu/eliaslab/#
How do animals communicate?
Descriptive Investigation
Dr. Damian Elias: http://nature.berkeley.edu/eliaslab/#Scientists from the Elias Lab use descriptive investigations to understand how jumping spiders communicate.
Jumping Spider Mating Dance
Descriptive Investigation
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Comparative InvestigationsDr. Larry J. Young: http://research.yerkes.emory.edu/Young/larry.html
What controls behavior?
Comparative
Dr. Larry J. Young: http://research.yerkes.emory.edu/Young/larry.html
Prairie Voles
Monogamous: Only have 1 partner
Vs.
Meadow Voles
Polygamous: have many partners
COMPARATIVE Investigation
TURK’S CAP SIBERIAN IRIS
TURK’S CAP
TURK’S CAP
SIBERIAN IRIS
SIBERIAN IRIS
Mind Maps
In science, there are three types of investigations
Descriptive Comparative Experimental
Can be
Describe the similarities and
differences between two or more things.
Make observations of two or more things using 5 senses and
scientific tools.
Will
Create your own Investigation
• I will assign your table either a descriptive or comparative investigation.
• You must come up with a question you would like to answer in your investigation.
• You must come up with the way your will carry out your investigation.
Experimental Investigations
Dr. Rachel Paige: http://research.yerkes.emory.edu/Young/larry.html
What are the risks when finding a mate?
Experimental
Male Simple Call Male Complex Call
Female Frog Bat
Mind Maps
In science, there are three types of investigations
Descriptive Comparative Experimental
Can be
Include a hypothesis and prediction
Observe the effect of the independent variable on the
dependent variable
Will
DO NOW (Pg. 6 in journal)Objective SWBAT distinguish between a descriptive, comparative, and experimental
investigations.
Prompt
What is the difference between a descriptive, comparative, and experimental investigation?
Reminders: --Homework due today. Make a pile in the aisle.
ESSENTIAL QUESTION:How do you design an experimental investigation?OBJECTIVES:-Design an experimental investigation to test a question about Turk’s Cap and the Siberian Iris.
Experiments
Testable Question: Do plants grow taller under a green, red, blue, or natural sunlight?
Can be turned into a hypothesis…
IF_______________________, then
______________________________.
Hypothesis• A prediction that answers the question in an
experiment.
• Testable Question: Do plants grow taller under a green, red, blue, or natural sunlight?
Can be turned into a hypothesis…
If I place plants under green, red, blue, and natural sunlight , then the plant under the red light will grow faster.
Variables and Controls
Independent Variable: Something the scientist changes during the investigation.
Dependent Variable: Something that changes and can be measured as a result of the independent variable.
Control/Constant: Something that stays the same in an investigation.
Variables
Testable Question: Do plants grow taller under a green, red, blue, or natural sunlight?
The plants height is the ______________________
The color of the light is the ___________________
Design your own experiment
• With your shoulder partner:– Come up with a question that can be tested– Form a hypothesis that gives a prediction that
answers that question– Identify variables and control– Be prepared to talk about how you would set up
your experiment, and what kind of data you would collect.
If I put a plant under a blue light and another under a red light, then then plant under the blue light will grow faster.
The type of plantThe color of light
The plant’s height
Plant A: 6 cm
Plant B: 12 cm
Descriptive, Comparative, or Experimental?
• On your dry erase boards, choose whether the experiment read by the teacher is a descriptive, comparative, or experimental investigation.
Descriptive vs. Comparative vs. Experimental
Use your cards to identify the type of investigation
Descriptive Comparative Experimental
Descriptive vs. Comparative
Jane Goodall began studying Chimpanzee’s in the 1960’s. Jane moved to Africa and began making close observations of Chimpanzees in the wild and in captivity. Because of her investigations we now know that chimpanzees are meat eaters, use tools, and hunt Capuchin monkeys for food.
Descriptive vs. Comparative
In the 1670’s Antony van Leeuwenhoek was the first person to look at living cells under a microscope. Leeuwenhoek viewed pond water under a microscope and discovered a world of small single celled creatures.
Descriptive vs. Comparative
Jane and Sarah are involved in the student health club. They are concerned about rumors that girls are concerned about their weight. They are wondering if this is a problem with girls at every grade. Both girls make careful observations in the cafeteria during 6th and 7th grade lunch. The girls put their finding together so they can present it to their teacher.
Descriptive vs. Comparative
Max wants to help plant the school garden. He is interested in planting species of plants and flowers that will attract birds and butterflies. Max decided to go to the local city garden. Max made careful note of the animals that visited the gardens. When he was finished observing he recorded the names of the plant species that were planted there.
Descriptive vs. Comparative
Jason is on the track team, and he wants to run faster. While watching TV, he sees two different commercials for energy drinks that promise to give you more energy. He times himself running 1 mile on Monday without any energy drink. Then he times himself running 1 mile after drinking 16oz of Red-Bull one week later. Finally, he times himself running 1 mile after drinking 16oz of Monster energy drink a week later. After analyzing the data, he infers that energy drinks do not make him run faster.
Descriptive vs. Comparative
Mark works for the National Forest Service. He is concerned about the effects of forest fires on the species plants and animals in the mountains where he works. Mark decided to visit the north side of Sleeping Ute Mountain where fires were very rare. He recorded observations of the plants and animals. Mark then traveled to the south side of the mountain that had recently experienced a wild fire (cause by lightening). Mark recorded his observations of the plants and animals there.