Competency 25 Scientific Inquiry

  1. observing
  2. communicate
  3. classify
  4. measure
  5. predict
  6. hypothesize
  7. inferring
  8. making a model

Name the 8 process skills emphasized in EC-6 TEKS.
inferring

  • a building should be built using hard rocks or minerals.  using soft materials could make it fall down.

the above statement is an example of what process skills?

hypothesizing

  • if sedimentary rock is formed in layers then we think  we’ll be able to find fossils in and between the layers of rock.

the above statement is an example of what process skill?

making a model
students using plaster to make a fossil is an example of what;process skill?
predicting
students stating “we think this layer is a sedimentary rock”;is an example of what process skill?
predicting

  • usually begins with “what would happen if…”
  • fosters higher order thinking skills

classifying
categorizing rocks into groups based on color, hardness, softness, or luster;is an example of what process skill?
communicating
verbally stating “this rock is smooth, black, and shiny”;is an example of what process skill?
measuring
3rd graders using a balance scale to measure the mass of their sedimentary rock to check accuracy of their estimates is;an example of what process skill?
observing
visually inspecting physical properties of a rock such as hardness, color, texture is an example of what process skill?

descriptive

classification

experimental

grades 4-6 usually conduct these types of investigations
non-experimental inquiry investigations

  • these type of investigations are usually done by grades 1-3
  • this type of investigation includes descriptive and classification

1st graders

  • they use kinder tools, clocks, paper clips, hands, and pencils
  • they observe, communicate, measure with non-standard units and record/compare collected info

2nd graders

  • they use rulers, meter sticks, and measuring cups
  • they use and conserve resources
  • conduct classroom and field investigations of home and school safety procedures

what grade level is this?

5th graders

  • they use kinder tools through 4th grade, field nets, and hot plates
  • they collect and analyze information, conduct scientific inquiry, and demonstate that repeated investigations may increase reliability of results

what grade level is this?

3rd graders

  • they use kinder tools through 2nd grade, magnets, microscopes, calculators, cameras, safety goggles, compasses, and sound recorders

what grade level is this?

kindergarten

  • they use hand lens, bowls, balance and computers

what grade level is this?

experimental

This type of inquiry investigation:

  • conduct experiments to test hypotheses, collect/analyze data, make connections, and develop conclusions
  • example would be “sound”; which state of matter does sound travel through fastest and why?

classification

This type of inquiry investigation:

  • organize collected information by sorting and grouping it according to one or more properties
  • example would be “rocks, minerals, vertebrates”; what mineral is the softest? what are the 3 groups of vertebrates?

experimental
these inquiry investigations involves the use of;controlled and manipulated variables and generates evidence to develop conclusion

  1. Engage
  2. Explore
  3. Explain
  4. Elaborate
  5. Evaluate

What are the 5 stages to the 5-E Model?
engage
questions are asked and prior knowledge is activated in this stage of the 5E Model…
explore

during this 5E Model stage, students:

  • plan and conduct investigation
  • state a hypothesis
  • make predictions and
  • use materials
  • also known as the Guided Discovery stage

explain

during this 5E Model stage, students:

  • collect all data
  • describe, reflect, and communicate
  • state main concept
  • scientific vocabulary is now introduced

elaborate

during this 5E Model stage, teachers :

  • engage students with additional hands-on labs, reading discussions, field trips
  • expand/enhance students understanding by applying concept to real-world
  • ask questions to prompt new thinking and students apply learning

evaluate

during this 5E Model stage, teachers check and measure through:

  • science journals, portfolios, conferences, technology, concept maps, observations, and presentations
  • students self assess their own progress
  • formative and summative assessments are used

;

scientific method for science inquiry

  1. state the problem
  2. form the hypothesis
  3. collect data
  4. interpret the data
  5. state the conclusion

are the 5 stages to the

control variable

the variable held constant throughout the experiment

examples would be:

  • the type of soil used
  • the depth the bean is planted
  • same ball, surface, conditions, measuring device used

dependent or responding variable

  • the variable that changes as a result of the manipulation
  • “what was observed”
  • depends on other factors

independent or manipulated variable

  • the manipulated variable that is changed in an experiment
  • the changes are directly caused by the experimenter (YOU)

the independent/manipulated variable would be the type of music the bean seeds are exposed to

Hypothesis: the rate of a bean plant’s growth increases if the plant is exposed to rap music

 

What would be the independent/manipulated variable?

the dependent/responding variable would be the height of the bean plant

Hypothesis: the rate of a bean plant’s growth increases if the plant is exposed to rap music

;

What would be the dependent/responding;variable?

Charles Darwin
he proposed the theory of evolution by natural science
independent variable

the variable that is manipulated and may be changed in an experiment

example:

  • the amount of water the bean seeds receive
  • the height of the ball above surface before it is dropped

dependent variable

the responding variable that changes as a result of the manipulation

example:

  • height of the bean plant
  • height the ball bounce up from the surface after being dropped

controlled variable because nothing was changed

Example:

If you planted bean seeds in the same size pot, with the same type of soil, at the same depth, using the same;amount of time exposed to sun and water

;

the above example of;these variables would be considered what and why?

Isaac Newton
he discovered the 3 laws of motion
Louis Pasteur
he invented pasturization to kill germs
George Washington Carver
he discoverd a way to make soybeans into rubber, peanuts into paper, cotton into road-paving materials
Alexander Fleming
he discovered the 1st known antiboiotic penicillin
descriptive

this type of investigative procedure observe and gather data to identify:

  • the reason why something is happening
  • the properties of the object
  • or the cycle of a system or organism

example would be the life cycle of a butterfly or the water cycle

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