Teach lesson
Inside plants: a microscope journey
Primary students use the Plant Tissues remote lab to observe a real stem at 4x and 40x, draw what they see, and explain that plants have many cells and small tubes that carry water.
Learning Outcomes
Open the Plant Tissues lab and observe a real stem with the microscope.
Compare an overview of the stem at 4x with a close view at 40x.
Draw or describe visible cells, the outer border, and small tubes without measuring.
Explain in simple words that plants are made of many cells and have vessels that carry water.
Student activity preview
Activity Content
Preview only. In a class session, students can fill in responses and submit their work to the teacher.
1 · Before you look
5 min
Today you will look inside a plant with a remote microscope. You do not need difficult names or calculations. Your job is to observe, draw, and explain in your own words.
We will use these ideas:
- A cell is a tiny piece of a living thing. Plants are made of many cells.
- A stem cross-section is a stem cut like a slice, so you can see from the outside toward the inside.
- Small tubes or vessels are plant parts that help carry water. Under the microscope, they may look like circles or groups of circles.
- 4x helps you see more of the stem at once.
- 40x helps you see a smaller area with more detail.
First imagine what you might see. It is fine if your prediction changes later: careful observation helps us improve our ideas.
If you cut a stem into a slice and look at it with the microscope, which prediction seems most reasonable?
Write one sentence: how do you imagine the stem looks inside before you observe it?
2 · Open the lab
10 min
Now open the lab from TEACH and follow these steps. If your teacher projects the lab for the whole class, still complete your answers using what you see.
Open Plant Tissues
Open the lab from TEACH.
If the introduction appears, move forward to configuration.
Choose Agricultural Botany.
Choose a stem cut into a slice. The recommended option is cross-section of a herbaceous dicot stem.
If the preparation screen appears, complete it or use Skip preparation if your teacher allows it.
Look at the stem at 4x. Notice the whole shape, the outer border, and groups of small tubes.
Change to 40x. Notice a small area: look for many cells and larger empty-looking circles.
Do not use 100x for this activity. If an oil reminder appears, return to 40x or record that 100x was not needed.
Which route do you need to complete this activity?
Write what you were able to open in the lab. Include the collection, sample, and magnifications. If something did not work, explain exactly where it stopped.
3 · Observe and draw
13 min
Complete one row for the overview at 4x and one row for the close view at 40x. You may draw in your notebook and write a short description here.
This is what a stem looks like at 4x. You can see a rounded shape, many small pieces, and groups of small tubes near the border:
Stem at 4x
Use 4x to orient yourself: whole shape, border, and groups of small tubes.
This is what one area of the stem looks like at 40x. The large empty-looking circles are good candidates for the small tubes that carry water:
Stem at 40x
Use 40x to inspect a small area with more detail.
My observation notebook
Complete two rows. In the drawing or description column, write what you drew if you are using a notebook.
| View | Drawing or description | Do I see many small pieces? | Do I see circles or small tubes? | Border or limitation |
|---|---|---|---|---|
Final drawing or description
Upload a photo of your drawing or write a final description. It should include: the sample observed, the magnification, one clue about cells or small pieces, one clue about small tubes, and one thing that is not perfectly clear.
Write one specific thing you saw inside the stem. Do not only write "a plant": name a shape, a border, many pieces, circles, or small tubes.
4 · What did you discover?
7 min
Now turn your observations into one idea to remember. You do not need to classify the plant as a monocot or dicot. That comparison is for secondary school.
The large circles or small tubes you saw in the stem help you think that the plant...
Complete these ideas in your own words:
- Inside, the stem has...
- The small tubes are useful because...
- What I still cannot be perfectly sure about is...