Practice of Science D4 8th Grade Science 2017-2018

Experimental Design Bellringer Rafael broke a small twig off a tree and threw it in the Lake. It floated away. If he could somehow push the whole tree into the Lake and it floated, which of the following would explain why it floats? The temperature of the tree is less than the temperature of the water. The volume of the tree is less than the volume of water. the mass of the tree is less than the mass of the water. The density of the tree is less than the density of the water.

Flip Work NEW For next class! Check Types of Data Flip work completion Designing an Experiment Due 9/7 A-day; 9/8 B-day Read pages 11-14 in your BFN class book Navigate to nearpod and complete assignment, using your class code

New class resource Navigate to www.usatestprep.com Click log-in and scroll to “create account” Create account using Using the following information: Account ID: macs62 Activation code: stu1322 Continue Log in Process Please use same password as Miami Arts Charter

Missed/Make-up Vocabulary test Those who need to take the test will sit at table 3, facing the whiteboard. When you are done, join in with the lesson in progress. This Photo by Unknown Author is licensed under CC BY-SA

How to Write a Lab Report Review the handout. Tape it into your science journal.

The Importance of a Hypothesis It is a cause and effect statement. Can you think of some cause and effect statements? Cause = independent variable Effect = dependent variable The hypothesis tells you what you are testing and what you expect to happen.

Scientific inquiry methods Experiments have a testable hypothesis and you carry out the testing procedure Investigations have a hypothesis but it is not testable, only observable. These types of inquiry depend on the observations made during the investigation. Most inquiry where you make models that represent difficult ideas are considered an investigation

Scientific observation Types Qualitative: observations about qualities, like location, color, shape Quantitative: observations involving measurements and numbers. Give examples This Photo by Unknown Author is licensed under CC BY-NC-ND

Make a CLAIM, back it up with EVIDENCE, and explain your REASONING CER method Make a CLAIM, back it up with EVIDENCE, and explain your REASONING Scientific Explanations Scientific explanation are different from everyday explanations because they are based on evidence. Science students need to explain conclusions that they reach, from taking data, in a clear way. Claim, Evidence and Reasoning is a format that makes writing very complex ideas, a little easier. When you are writing a paper, answering questions on a quiz or CSAP, you have a much greater chance of proving what you know if you use the CER format. Claim: This is the idea that you are trying to prove. In English class, you would call it a thesis statement. It could also be the introductory paragraph in a paper Evidence: This section will be very dry. You should describe graphs and outline evidence. Your own thoughts will go in the reasoning section. Evidence should include: Studies that support your claim Data Facts Reasoning: This is where you will put your ideas about what the evidence means. Reasoning explains why evidence came out the in the way that it did. Reasoning should include: Your ideas on why graphs have a particular shape. Your ideas on why your claim is true. You should reach logical conclusions based on evidence. Build your argument to prove your point. Source: https://cfahs-science.wikispaces.com/Claim%2C+Evidence+and+Reasoning+%28CER%29

SHOULD TEACHERS GIVE HOMEWORK? Practice CER (we do) Lets do this one together: 1. Circle claim 2. underline evidence 3. double underline reasoning Teachers assign homework to increase kid’s knowledge and help them practice skills. Homework sometimes reviews what students have already learned, helps them review for tests or prepare for a difficult lesson, or introduces an idea that will be discussed in class. Homework also provides an opportunity for parents to participate in their children's education. However, people who are against homework say that it is repetitive, boring and useless. It takes up kid’s time without giving them much benefit. Kids today have many activities outside of school. It is difficult for families to put in the time it takes for homework to be done well. SHOULD TEACHERS GIVE HOMEWORK? Your Claim: ________________________________________________________________________________________________________ ________________________________________________________________________________________________________ ________________________________________________________________________________________________________ Your Evidence: Your Reasoning: Source: http://mrdoylesuis.weebly.com/uploads/2/3/0/4/23046826/cer_-_writing_claim_homework_sc_101.pdf

Practice CER (you do) Working with a partner, complete the worksheet. Be sure to collaborate, critique, and discuss answers before writing them down.

Extend Go to IXL and work on Engineering practices T.1Identify parts of the engineering-design process T.2Explore the engineering-design process: going to the Moon!