Lesson 3: Transpiration: The Solar Powered Pump

Why do plants "sweat"? How does the weather change how much a plant needs to drink?

Transpiration, Stomata, Guard Cells, Evaporation, Humidity, Cohesion-Tension Theory.

DCI: LS1.A (Structure and Function); SEP: Constructing Explanations; CCC: Systems and System Models

Analysis in Science: Synthesizing multiple data sets (e.g., Humidity vs. Transpiration Rate) to determine non-linear relationships.

(DOK 3) Students conduct the "Plant Transpiration Online Lab," measuring water loss under different conditions (fan/wind, heater, lamp). They use the "Transpiration Reading Comprehension" to see how stomata facilitate the gas exchange necessary for photosynthesis.

Roadside Grass: Students explain that the high concentration of salt on the roadside creates an environment where water is "pulled" out of the grass roots via osmosis, causing the plants to dehydrate and turn brown despite spring rain.

Students often think plants lose water on purpose to "cool down" like humans, rather than it being an inevitable consequence of opening stomata for CO2.

Differentiation by Content:
Tiered Assignments: Create assignments with varying levels of difficulty to cater to students' abilities. For example, offer a basic level assignment, an intermediate level assignment, and an advanced level assignment.
Flexible Grouping: Group students based on their readiness levels or learning styles. This allows you to provide targeted instruction and support to different groups of students.
Choice Boards: Offer students a variety of activities to choose from, allowing them to select tasks that align with their interests and learning styles.
Differentiation by Process:
Scaffolded Instruction: Break down complex tasks into smaller, manageable steps to support students who need additional guidance.
Graphic Organizers: Provide students with visual tools like Venn diagrams, concept maps, and timelines to help them organize information and make connections.
Technology Integration: Utilize technology tools like simulations, online resources, and educational apps to engage students and provide alternative learning pathways.
Differentiation by Product:
Multiple Assessment Options: Offer students a variety of ways to demonstrate their understanding, such as written reports, presentations, models, or digital projects.
Student Choice: Allow students to choose the format for their final projects, giving them ownership over their learning.
Rubrics: Develop clear and specific rubrics to provide students with expectations and guidelines for their work.

LP 3.3 Checkpoint (Quiz)

https://drive.google.com/drive/folders/10xQMitsgmU8dDMx6gGl4u5RTAJJGWBUz?usp=drive_link