Lessons Direct
Lessons Direct was designed to help teachers, support staff, and families who were looking for innovative, universally-designed lesson plans for their learners. <br>
Category: Science
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In this activity, learners will create their own rules to establish what “life” is by sorting everyday objects into categories. You are a living person. The air in your lungs is not alive. The paper in your notebook used to be alive when it was a plant. When we study “life science” and biology, we…
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Why speed matters Most cryopreserved cells are frozen in medium containing DMSO, which protects cells during freezing but is toxic to cells once they are thawed, especially at room temperature or 37 °C. For this reason, the thawing process should be quick and deliberate, and DMSO should be diluted and removed as soon as possible…
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Aseptic Technique: Keeping Cell Cultures Clean and Healthy Aseptic technique refers to the set of practices used to prevent contamination from microorganisms such as bacteria, fungi, and yeast when working with cells. Because cell culture media is warm and nutrient-rich, even a tiny lapse in technique can allow contaminants to grow quickly and ruin an…
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Biosafety Cabinets: Working Safely and Cleanly A biosafety cabinet (BSC) is the primary workspace for cell culture and other sterile biological work. Its purpose is to protect you, your samples, and the laboratory environment while you work. Whenever you handle cells, media, or other biological materials, the biosafety cabinet is where that work should happen.…
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You’ve taken your first steps into a clean room where cell culture takes place. Let’s get you acquainted with one of the most important components of cell culture: the incubator. Incubators: Where Cells Grow A cell culture incubator is one of the most important pieces of equipment in a cell culture laboratory. Its job is…
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Today, students will model a vaccination program using an online game (found at https://mrcwimm.itch.io/the-vaccination-game). Pre-Laboratory Questions: Data Collection: Post-Lab Questions Future Directions
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Dialysis tubing is a soft, bendy tube with very tiny holes that you cannot see. These tiny holes let small things pass through but stop bigger things from getting through. This is similar to how a kidney works in your body. Your kidneys clean your blood by letting small waste particles and extra water leave…
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This laboratory comes straight from genome.gov/strawberry-DNA . Thank you to the United States National Institutes of Health’s National Human Genome Research Institute. Warm-Up Questions: Materials (per scientist):2 Strawberries, fresh or frozen1 Resealable Plastic Bag (Quart-sized or larger)2 teaspoons of Dish Detergent1 teaspoon of salt1/2 cup of water1 coffee filter2 plastic cups1/2 cup of cold rubbing…
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