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Inferences & Observations

Inferences & Observations. Day 3. Inference/Observation Input. Inference. Logical interpretation based upon prior knowledge and experience Based upon observations. Observation. Using your five senses to take note of and observe your surroundings. Let’s practice making inferences! Output.

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Inferences & Observations

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  1. Inferences & Observations Day 3

  2. Inference/ObservationInput Inference Logical interpretation based upon prior knowledge and experience Based upon observations Observation • Using your five senses to take note of and observe your surroundings

  3. Let’s practice making inferences!Output The next three slides show some fossil imprints that were found during a archeological dig. We’re going to record some observations and then make some inferences about what may have happened millions of years ago….

  4. Make 3 observations about the picture Make 1 inference about what may be happening in this picture

  5. Make 2 more observations Make 1 more inference

  6. This time make only observations…

  7. What do you think happened? Please write a short story describing what you think happened to the creatures in our fossil evidence

  8. Types of ObservationsInput • Quantitative Observation- Observation using numbers • Qualitative Observation-Observation without numbers • Lets Practice- You will be shown a picture on the following slide. Please write 2 quantitative observation and 2 qualitative observations.

  9. Output

  10. Homework Please work independently to complete the practice problem. If you need help, please raise you hand. 

  11. Inquiry foldableDay 4 Your will need to follow directions and fill in the following information in your foldable. Each slide is a new flap in your foldable. The titles of the slide should be the part that is hanging out of each flap. Please raise your hand if you have a question.

  12. Testable Question • A specific question where one variable is changed. Results can be observed and measure. • Measureable • One variable • Specific • Does (independent Variable) affect (dependent variable)? • Examples- • Does exercising affect your heart rate?

  13. Hypothesis • an “educated guess” • can be written -“If..., then..., because...” statement • Prediction Example If an individual increases his/her activity level, then their heart rate will increase because the body’s muscles (cells) will require more oxygen to function at a higher level. A faster beating heart will increase blood flow; thus, allowing an increased concentration of oxygen to reach the cells in need.

  14. Variables Independent • variable that is changed • “if” -in the hypothesis • “cause” in a cause and effect relationship Example The activity level (resting, walking, running) Dependent • Results/Measurement • factor you measure to gather results • “then” in the hypothesis • “effect” in a cause and effect relationship Example The person’s heart rate

  15. Identify the Variables independent variable • If a student chooses to not study, then they will earn a poor grade. • If you drink Gatorade before a soccer game, then you will score more goals. • If you increase the mechanical advantage of a pulley system used to move an object, then the input force becomes less. dependent variable independent variable dependent variable independent variable dependent variable

  16. Control or Control Group • The most normal situation • something that is not manipulated • a neutral point of reference for comparison –baseline for comparison Example The resting heart rate represented the baseline heart rate to which any increase in activity level was compared to.

  17. Constants • Factors in an experiment (both in the experimental and control groups) that are kept the same and not allowed to change Examples • One minute was consistently the amount of time allotted to perform the necessary activity • The type of activity performed • The stopwatch used during data collection • The method used to measure the heart rate

  18. Lets Practice… The Experiment • A shopping mall wanted to determine whether the more expensive “Tough Stuff” floor wax was better than the cheaper “Steel Seal” floor wax at protecting its floor tiles against scratches. One liter of each type of floor wax was applied to each of the 5 test sections of the main hall of the mall. The test sections were all the same size and were covered with the same kind of tiles. Five (5) other test sections received no wax. After 3 weeks, the number of scratches in each of the test sections were counted.

  19. Homework • Complete the practice scenarios-you may complete the front side with a partner. Please complete the back independently. If you need help, raise you hand

  20. پایگاه پاورپوینت ایرانwww.txtzoom.comبانک اطلاعات هوشمند پاورپوینت

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