New Middle School Science

1. New Middle School Science • Standards/Inquiry/Experimentation • Misconceptions/Student Learning • Effective MC/Questioning • Classroom Motivation/Managment in Middle School Science • Discussion: Issues, Problems, Solutions

2. Items of Importance • Teacher Info Form • Materials/Books • Experimentation • New Position Statement

3. Suggested MS Materials

5. Grades 6-8 Core Scientific Inquiry, Literacy and Numeracy How is scientific knowledge created and communicated? C INQ.1Identify questions that can be answered through scientific investigation.C INQ.2Read, interpret and examine the credibility of scientific claims in different sources of information.C INQ.3Design and conduct appropriate types of scientific investigations to answer different questions.C INQ.4Identify independent and dependent variables, and those variables that are kept constant, when designing an experiment.C INQ.5Use appropriate tools and techniques to make observations and gather data.C INQ.6Use mathematical operations to analyze and interpret data. C INQ.7Identify and present relationships between variables in appropriate graphs.C INQ.8Draw conclusions and identify sources of error.C INQ.9Provide explanations to investigated problems or questions. C INQ.10Communicate about science in different formats, using relevant science vocabulary, supporting evidence and clear logic.

9. Thoughts • How do you introduce the important points of experimental design in your science class? • What are some good ways to teach the scientific method and parts of good experiments throughout the year?

10. CLOSED TO OPEN Test how three different lengths of string affect the period of a pendulum using these materials and this procedure. • Design an experiment to test how the length of a string affects the period of a pendulum using these materials. • Design an experiment to test how either length, mass, or angle of a string affects the period of a pendulum using these materials or others you ask for. • Design an experiment to test how length, mass, and angle of a string affect the period and the slowing down of a pendulum using any materials. • Design an experiment to see what things change how a pendulum swings.

11. OPEN ENDED LAB ACTIVITIES (examples) • THREE WORDS EXPLAINS IT ALL!

12. OPEN ENDED LAB ACTIVITIES Open ended lab activities allow students to test a variety of variables to solve a problem in an open ended manner.Most lab activities can be modified to provide students with an open needed lab experience. An open ended lab activity can be used as both a teaching and assessment tool. In all cases, students are asked to design an experiment before actually doing the activity. Students can be given choice on materials, the independent variable, and even the dependent variable. Testing how one factor affects another should be done in as realistic and authentic a manner as possible, and also lends itself to collecting good quantitative data. In all cases, paper pencil test items can also be designed to go with the activities.Teachers can lead students up to these activities.Example (Closed to Open) Test how three different lengths of string affect the period of a pendulum using these materials and this procedure. Design an experiment to test how the length of a string affects the period of a pendulum using these materials.Design an experiment to test how either length, mass, or angle of a string affects the period of a pendulum using these materials or others you ask for.Design an experiment to test how length, mass, and angle of a string affect the period and the slowing down of a pendulum using any materials.Design an experiment to see what things change how a pendulum swings.-Following are several ideas for open ended activities.A complete lab activity with an example format, lab report scoring rubric, an open ended questions is also included.

13. OPEN ENDED LAB ACTIVITIES (examples)What factors:• about materials (sand, potting soil, limestone) or combination change the acidity and percolation rate of acid rainfall?• about materials (type, amount, covering) best insulate a cup of water?• about rock salt (type, amount, surface area) causes ice to melt? (speed, amount)• about water (amount, temperature, salinity) change how plant cells respond?• change the metabolism of a frog?• (mass, angle of ramp, shape, lubrication, etc...) change how (speed, distance after, straightness) toy cars go down ramps? • (color, filters, distance, angle, power) change the brightness of a light?• change the temperature in the classroom?• (temperature, amount, bubbles, purity) change how fast water freezes?• (angle, mass, shape, material, color) change how (speed, distance, path) a sphere is thrown?• (shape, bottom, materials, purity of water, ) change how (speed, turbulence) a river/stream flows?•(surface area, density, composition) affect the water retention (speed, amount in soil?• cause a human’s pulse rate to change?• (light, temperature, food) cause a meal worm to change?• (concentration, temperature) cause a yeast/peroxide reaction to change (rate, amount of bubbles)?• (air pressure, amount of water, shape of bottle) cause a bottle rocket to change its flight? (speed, height, distance, path)• (angle, distance, time) cause a light on a surface to change (brightness, temperature)• about water (temperature, oxygen) affect the movement of fish?• (mass, height, angle, composition) affects the (depth, width, shape) of craters?• (concentration, catalyst, surface area, temperature) affects reaction rates?• about populations (density, competition, food supply) affects growth?• about air (purity, volume, flow) affects respiration rates?• about salts (type, concentration, temperature) affects solubility?• about an environment (temperature, barometric pressure, humidity, light, wind speed) affects some other factor?• about a planet (rotation rate, inclination angle, distance, eccentricity) affects the seasons (temperature, duration, severity)?• about a magnet (strength, composition, distance) affects its magnetic field?• about a person (gender, height, weight, genes) affects some other factor?• about an object (composition, volume, shape, height) affects its resonant frequency?• about water (composition, salinity, movement) affects how things float the ocean?• about the room (air, light, sound volume, temperature, light color, radiation) affects how a plant grows (height, color, cell structure)

14. What Works? • KEY RESEARCH BASED SCIENCE INSTRUCTIONAL STRATEGIES • -Create a Climate for Learning: well planned lessons, positive teacher attitude, safe, secure, enriching environment. • -Follow a Guided Inquiry Learning Cycle Modelà Open Ended Inquiry: Guided Inquiry into a teacher posed question by students leads to students investigating their own questions. • -Generating and Testing Hypotheses: students given the opportunity to investigate their ideas. • -Setting Objectives/Providing Feedback: Objectives are always clear for all class activities, students always know how they are meeting objectives. • -Use Warm Up Activities, Questions, Cues, Advance Organizers: Starter questions generate interest, cue students as to learning activities, and provide a reference throughout a lesson • -Assess Prior Knowledge/Misconceptions: Students have to construct their internal model of science concepts and reconcile it with previous experience, often leading to hard to overcome misconceptions. • -Self-Explanation/Discussion: Students given the opportunity to explain and discuss ideas are better able to connect prior and new knowledge and experiences. • -Opportunities to Communicate/Cooperative Learning: Science is a group endeavor, as is it’s learning. Students learn best by communicating and learning from each other. • -Vary the Way Students Work: Lab groups, learning centers, projects, and other alternatives to traditional lecture allow for individualized instruction. • -Practice Effective Questioning Techniques: Questions are the tool to move towards a student-centered classroom, and different types of questions help guide instruction and learning. • -Vary the Structure of Lessons, Use Research Based Strategies: Lesson structure depends on the concepts and skills being learned and assessed. Brain based research in learning points to specific effective varying structures. • -Identify Similarities and Differences/Graphic Organizers: Science concepts are often organized into structures by humans attempting to understand nature. Help students understand the classification and organization of knowledge by continually comparing, classifying, as well as describing analogies and relationships. • -Scaffolded Writing Practice: Students can move from oral explanation to written explanation through careful guidance/practice, including both expository and persuasive writing in science. • -Strengthen Comprehension for Content Area Reading Text: provide guided focus question, organizers, response and discussion questions, summarize, evaluative prompts based on reading. • -Non-Linguistic Representations: Models, drawings, and pictures all can help understand science. • -Allow Opportunities for Peer Review: Students are frequently asked to evaluate others’ work on standardized testing and must be given regular opportunities as part of their science experience. • -Create and Embed Science, Technology and Society (STS), issues, and other items relevant to students’ lives. These interdisciplinary learning activities are designed to engage students in the applications of science using their critical thinking skills and content knowledge. They afford students the opportunity to examine ideas and data related to historical, technological, and/or social aspects of science concepts and content.

15. How Students Learn Science • Principle #1: Engaging Prior Understandings (Pre/Misconceptions) • Principle #2: Conceptual Frameworks in UnderstandingFactual Knowledge and, What does it Mean to Do Science • Principle #3: The Importance of Self-Monitoring (Meta Cognition) • http://www.nap.edu/openbook.php?record_id=11102&page=27

16. Learning Cycle Engagement: stimulate students’ interest, curiosity and preconceptions; Exploration: first-hand experiences with concepts without direct instruction; Explanation: students’ explanations followed by introduction of formal terms and clarifications; Elaboration: applying knowledge to solve a problem. Students frequently develop and complete their own well-designed investigations; Evaluation: students and teachers reflect on change in conceptual understanding and identify ideas still “under development”. See: 5E Model: http://www.newhavenscience.org/5e.doc

17. Review video “A Private Universe”.Discuss misconceptions in science. • Come from: • Real World Experiences (example: friction) • Bad diagrams. (example: earth orbit) Abstractions/Generalizations/Simplifications. (example: living things move, rocks are either metamorphic or igneous, a substance is a solid or a liquid) • Analogies: (electricity as water) • Models: (electrons go in orbits) • Vocabulary without context, different scientific meaning • “energy makes it go”“glaciers retreat” • Sayings/myths “lightning never strikes twice in the same place” • Plain bad facts. (evolution is impossible, heavier things fall faster)

18. Links to research on constructivism: how students learn science. They use their own experiences to construct their meaning and model of explanation of the world. Despite our “teaching”, students revert back to their models even if they have memorized ours. To overcome their deep misconceptions • -They must become dissatisfied with their existing conditions. (why is my explanation wrong?) • -The scientific conception must be intelligible. (Oh, this makes sense) • -The scientific conception must appear plausible. (This agrees with my experiences) • -The scientific conception must be useful in a variety of new situations. (I can use this to predict things)

19. If teachers are to improve students' science conceptions we must recognize that: • -students come to science class with ideas, • -students' ideas are often different from scientists, • -students' preconceptions are strongly held, • -traditional instruction (rote learning) will not lead to substantial conceptual change, and • effective instructional strategies enable teachers to teach for conceptual change and understanding.

20. The key to altering the ideas, explanations, and conceptions of science that students possess is to find out and use what students already know. The challenge of teaching science is to ensure that you do not leave intact students' alternative conceptions or fill students with ideas and explanations which have little chance of being understood.

21. “While growing up, children are told by adults that the "sun is rising and setting," giving them an image of a sun that moves about the earth. In school, students are told by teachers (years after they have already formed their own mental model of how things work) that the earth rotates. Students are then faced with the difficult task of deleting a mental image that makes sense to them, based on their own observations, and replacing it with a model that is not as intuitively acceptable. This task is not trivial, for students must undo a whole mental framework of knowledge that they have used to understand the world.”

22. Constructed Response (MC) • What is the purpose? • What are the “rules”? • What makes it good/bad? • What are some examples?

23. WHAT thinking are we testing? • Going Up Bloom’s • Correct word for definition • Correct explanation for this process • Correct prediction for event • BEST explanation • Evaluation/score a group

24. What Content are we testing? • Objective • Performance Standard

25. What misconceptions?

26. Does it test science or test taking?

27. RULES for MC • Find the objective • Frame the question (stem) • Find the most obvious correct answer • Create distractors (misconceptions)

28. Good/Bad 1) Reduce cognitive Load • Simple stem • Common choices • Negatives/ word choice

29. Good/Bad 2) Reduce “guess” • Consistent grammar, length • Plausible distractors • Limit clues • Avoid definite words (always, never) • Avoid opposites • Avoid giveways • WRITE CORRECT ANSWER 1st

30. Push to Critical Thinking • Premise-Consequence • Case Study • Scenario • Problem/Solution Evaluation • Science: Prediction?

31. YOUR TASK (please) • Look at the standards (again) • Remember your identified misconceptions • sample exam questions? • Use the resources. • Practice formulating GOOD MC questions

32. Misconceptions and use in Formative Assessment in Multiple Choice Questions • One use of error analysis in questioning or assessment is to identify the misconceptions students may have about a concept or topic, thus leading to a change in instructional strategy or method. When a test item includes the correct answer along with several common misconceptions about that concept, students who do not truly understand the concept are likely to choose the answers reflecting their misconceptions. This kind of test item conveys more thoroughly to the teacher or evaluator just what ideas each student has constructed, based on prior knowledge and experiences, and where the problems lie in that student's thinking.

33. A common example is the cause for seasons. Which factor causes the greatest effect on the seasons on Earth? • A) The Earth is farther away from the sun in winter • B) The sun is higher in the sky in winter • C) The Earth is tilted away from the sun in winter. • D) The time of daylight is shorter in winter • While students may have memorized that the cause for the seasons is related to the tilt of the Earth, they often still hold on to the misconception that the distance from the Earth to the Sun is the cause. Examining how many students have selected choice A, vs choice C helps the teacher understand the need for further questioning and text or experiences that refutes students’ misconceptions.

34. ERROR ANALYSIS EXAMPLE • Which of the following best explains why the Sun appears to move across the sky every day? • A) The Sun rotates on its axis. ( 5 %) • B) Earth rotates on its axis. (28%) • C) The Sun orbits around Earth. (20%) • D) Earth orbits around the Sun. (47%)

36. WHY ask Questions?

37. What lasts, remembering or thinking? Why?

38. How can questions get knowledge into working memory then permanent memory?

39. How can questions find out misconceptions? • What causes the seasons?

40. How much of a typical lesson is questioning?

41. What kind of questions get students thinking?

42. How does questioning support active learning? Is thinking driven by answers or questions?

43. Which question is better? • What did you learn from the reading? • What are the five most important facts from the reading and why?

44. Should questions have a purpose?

45. What types of questions do we use in teaching? • What are advance organizers? • What are cues? • What are input/focusing questions? • What are discussion questions? • What are summary questions?

46. How do advance organizers work?

47. How do cues affect student learning?

48. Should questions focus on what is important or what is unusual?

49. Why doesn’t just giving the vocabulary and definition work? • Are students just linguistic learners? • Do students understand new words as descriptions or definitions? • How do students make their own meaning of new ideas and concepts?

50. What are good comprehension questions? • What is the author really saying? • Why is this important?