The student will predict, investigate, observe, and report on the effects that pH, concentration, and temperature have on catalase enzyme reactions. Students will conduct an experiment in which they will alter the pH, concentration, and temperature of the environment in which catalase enzyme reactions are taking place. Students will be able to describe how changes in these environmental conditions affect the action of the enzymes in living things.
2-4 students per group
2.5, 2.6, 3.1, 3.5, 4.2, 4.4, 5.2, 5.3, 5.7, 5.8, 6.1, 6.2, 7.1, 7.2 , 7.3, 7.5
|Lesson Components||Time||Inquiry Skills||Tech. Used||Engage Level||Brief Description|
|Engage||10 min||1.3, 5.2||none||3||Students will observe a demonstration of a catalase reaction between liver and hydrogen peroxide.|
|Explore||15 min||1.3, 4.3, 5.8, 5.9||none||3||Students will experiment with different enzymes and substrates to understand the structure and function of enzymes.|
|Explain||10 min||5.2, 5.7||none||2||Students will describe their understanding of how enzymes and substrates interact and how enzymes affect activation energy.|
|Expand||50 min||2.1, 2.2, 2.5, 3.1, 3.2, 3.3, 3.5, 3.7, 7.2||none||3||Students will experiment with altering the pH, concentration, and temperature of the catalase reaction. Students will explain their understanding of how each factor affected the reaction rate.|
|Evaluate||15 min||5.7||none||1||Students will complete a summative assessment on enzymes.|
|Level of Student Engagement|
|1||Low||Listen to lecture, observe the teacher, individual reading, teacher demonstration, teacher-centered instruction|
|2||Medium||Raise questions, lecture with discussion, record data, make predictions, technology interaction with assistance|
|3||High||Hands-on activity or inquiry; critique others, draw conclusions, make connections, problem-solve, student-centered|
Please share your comments (e.g., strengths, areas for improvement, your implementation results if you taught the lesson in your class, and any modifications you made). Thanks!