Search results for: “need”
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How Can the Scientific Method Solve Real-World Problems?
Read short stories about how scientists used the scientific method to solve real problems, such as the discovery of penicillin and the cause of beriberi.
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Stickleback Fish – An Evolution Story
Students to examine two lakes and compare the types of fish in each. They learn how lakes form, and why spines may be an advantage for some populations.
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AP Biology – Investigation on Genetics with Plants
A modified AP Lab where students learn to grow plants from a seed, cross pollinate plants and conduct an inquiry investigation about plant genetics.
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Color a Typical Animal Cell
This worksheet requires students to color a drawing of animal cell according to directions, intended as practice or reinforcement for a unit on cell biology.
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Investigation: Modeling Diffusion
This inquiry investigation requires students to cut agar into 3 shapes (small, medium, large) and compare the rates of diffusion.
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Observing Human Cheek Cells with a Microscope
In this lab, students use a toothpick to get a sample of cells from the insides of their cheek, stained with methylene blue.
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Investigation: What Are the Processes of Science
Inquiry investigation where students develop hypotheses to answer a question about lung capacity, design an experiment, collect data, and draw conclusions.
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Removal of the Frog’s Brain
This worksheet provides instruction for removing the brain and reveal the lower leg bones, which include the femur and the tibiofibula (fused tibia and fibula).
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Chi Square Analysis
The new Advanced Placement Biology curriculum includes a few topics on statistical analysis under the section on Science Practices: “Students can use mathematics appropriately.” Most introductory level biology classes (freshman) do not include these lessons because it can be difficult with students who haven’t advanced very far in algebra. Seniors in AP Biology should…
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Precision Versus Accuracy
I was in the market for a new digital scale, mainly for the osmosis experiment where students must weigh dialysis tubes. I found that my one digital scale just wasn’t enough for 20 students to gather data. Unfortunately, digital scales you buy from scientific suppliers are often very expensive and I really don’t need the…
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Top 10 Classroom Pets
Many science teachers have classroom specimens (or pets) to serve as model organisms, to teach students how to care for animals, and to generally liven up the space. When I first started teaching, I inherited a room that had beautiful cabinets full of specimens preserved in formaldehyde. I wanted a pet in that space…
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Analyzing and Interpreting data with Graphs
NGSS and AP Biology resources for interpreting data exercises in the classroom. Turn graphs into discussions and mysteries.
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Can Bacteria Be Designed to Create Gasoline?
I’ve heard the term “biofuel” before, and that usually conjures up images of corn fields and ethanol. I recently attended a lecture at Washington University presented by Fuzhong Zhang. The title of the workshop was quite intimidating: “Synthetic Regulatory Systems for Dynamic Metabolic Pathways.” Teachers don’t just spend our summers lazing about at the pool!…