Mystery tube (black box-Berkley) (Casey Hayes)
Author
Casey Hayes
Principle(s) Illustrated
Students explore observations and hypothesis generation.
Introductory experiment
Modeling
Collaboration
Standards
NGSS Science & engineering standards
Analyzing and Interpreting Data
Constructing Explanations
NGSS Cross-cutting concept standards
Cause and Effect
HS-LS2-5
Develop a model to illustrate the role of photosynthesis and cellular respiration in the cycling of carbon among the biosphere, atmosphere, hydrosphere, and geosphere. [Clarification Statement: Examples of models could include simulations and mathematical models.] [Assessment Boundary: Assessment does not include the specific chemical steps of photosynthesis and respiration
HSLS2_6.
Evaluate claims, evidence, and reasoning that the complex interactions in ecosystems maintain relatively consistent numbers and types of organisms in stable conditions, but changing conditions may result in a new ecosystem.[Clarification Statement: Examples of changes in ecosystem conditions could include modest biological or physical changes, such as moderate hunting or a seasonal flood; and extreme changes, such as volcanic eruption or sea level rise.]
Questioning Script
Prior knowledge & experience:
They assume nothing, but know that bad observations lead to bad hypothesis and even poor experimentation. Students are developing their knowledge of real world events and developing the scientific structure that has unity among all individuals.
Start with observations and operational definition so that students are on the same page
Have students predict what is happening inside the container (After test questions)
Students will have a chance to look at the device and test their hypothesis.
Draw and model predictions
Gallery walk to break down presentation.
Root question:
Why is this happening, and how can you predict what is happening based on evidence and observations. How is this like biology and other sciences?
Target response:
Written instruction or blue print of what is inside the bottle.
Generate hypothesis
Test hypothesis
Common Misconceptions:
Magic, Aliens