| Full lesson | Create for a teacher a set of content for giving a lesson, beginning with the lesson plan. Each new block of materials must begin with an H1 heading (other subheaders must be H2, H3, etc). When you describe required pictures, write those descriptions in curly brackets, for example: {A picture of a triangle} |
| Which subject | Biology |
| What topic | Cell division |
| What length (min) | 30 |
| What age group | Year or Grade 9 |
| Class size | 20 |
| What curriculum | |
| Include full script | |
| Check previous homework | |
| Ask some students to presents their homework | |
| Add a physical break | |
| Add group activities | |
| Include homework | |
| Show correct answers | |
| Prepare slide templates | |
| Number of slides | 5 |
| Create fill-in cards for students | |
| Create creative backup tasks for unexpected moments |
Cell Division
Biology
9th Grade
14-15 years old
30 minutes
20 students
This lesson aligns with the Next Generation Science Standards (NGSS) for High School Life Sciences, focusing on cell biology.
By the end of this lesson, students will be able to:
| Step Number | Step Title | Length (minutes) | Details |
|---|---|---|---|
| 1 | Introduction | 5 | Briefly introduce the topic. Explain the importance of cell division in biology. |
| 2 | Homework Review | 5 | Check homework from the previous lesson without student presentations. Provide feedback. |
| 3 | Concept Introduction | 5 | Introduce key concepts of mitosis and meiosis, explaining their roles in the cell cycle. |
| 4 | Activity: Distribution of Cards | 5 | Hand out printable cards to students. Explain how to fill them out during the lesson. |
| 5 | Guided Practice | 5 | Work as a class through the basic stages of mitosis and meiosis, using visuals. |
| 6 | Student Activity | 5 | Allow students time to fill out their cards with relevant terms and definitions. |
| 7 | Collection/Random Check | 3 | Collect the filled cards or randomly check a few to assess understanding. |
| 8 | Assign Homework | 2 | Assign homework related to cell division concepts. |
Students will be evaluated through participation in the card activity, informal assessment during guided practice, and the completion of the homework assignment.
Ensure all materials are prepared before the lesson. Modify activities to accommodate all learning styles and ensure all students are engaged.
"Good morning, everyone! Today we are diving into an essential topic in biology: cell division. Can anyone tell me why cell division is important? [Pause for responses] That's right! It plays a crucial role in growth, repair, and reproduction. Understanding how cells divide is fundamental to many areas of biology, including genetics and cancer research. So, are you ready to explore this fascinating process?"
"Before we jump into today's lesson, let's quickly review the homework from our last class. I will go around and check your assignments. Please have them out. [Walk around the classroom reviewing homework] Great job, everyone! I noticed some excellent points made about the structure of cells. Keep up the good work and remember, if you have questions on what we covered, don’t hesitate to ask!"
"Now, let's introduce some key concepts. We're going to discuss two main types of cell division: mitosis and meiosis. Mitosis is the process by which a cell divides to create two identical daughter cells, important for growth and repair. On the other hand, meiosis is a specialized form of cell division that results in gametes, which are necessary for sexual reproduction. Let's take a moment to understand what happens during these processes in detail."
"Now, I have some printable cards that focus on the key terms and stages we'll be discussing today. [Distribute cards] Each of you will receive a card, and I want you to have a pen or pencil ready. As we explore each stage of cell division, I will guide you on how to fill out your cards. Make sure you pay attention, as this will help reinforce what you learn today."
"Let's work together as a class to go through the basic stages of both mitosis and meiosis. [Project visuals on the screen] Here is the diagram of mitosis. Can anyone tell me the first stage? [Pause for responses] That’s right—prophase! During prophase, the chromatin condenses into visible chromosomes. As we move through each stage, I want you to note them down on your cards. Moving on, we have metaphase, anaphase, and so on. Now, let’s do the same for meiosis, which has two rounds of division. Just like before, please follow along with me."
"Now it's time for you to work independently for a few minutes. Use the handouts you've received to fill out your cards with the relevant terms and definitions we discussed. Don’t forget to refer back to the visuals we just covered. You have about five minutes for this activity—go ahead!"
"Alright, pencils down! Please hand me your cards or raise your hand if you're still working. [Collect cards] Now, I'm going to randomly check a few of these to see how well you understood the key terms. Let's see what we have! [Check a few cards] Awesome work! I can see many of you grasped the concepts."
"For tonight's homework, I want you to reflect on what we learned about cell division. Please write a short paragraph explaining the difference between mitosis and meiosis. This will help you clarify the concepts even further. Remember, we will discuss your paragraphs in our next class. Great job today, everyone!"
| Question | Answer |
|------------------------------------------------------------------------------------------------------|--------|
| What is the importance of cell division in living organisms? | |
| Can you explain the difference between mitosis and meiosis? | |
| What happens during the prophase stage of mitosis? | |
| How many rounds of division occur in meiosis? | |
| Why is meiosis considered a specialized form of cell division? | |
| What are gametes and why are they important for sexual reproduction? | |
| During which stage of mitosis do chromosomes line up at the cell's equator? | |
| What is the outcome of mitosis? How many daughter cells are produced? | |
| Can you list the key stages of mitosis? | |
| How does cell division contribute to growth and repair in multi-cellular organisms? | |