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Collection of Teaching Resources

Teaching Resource: STAMINA CELL - Blood cell observations under a microscope

Subject taught
- Biology


Type of Product
- Web Site/Portal

Language Skills Developed
- Reading

Transferable/Scientific Skills Developed
Knowing how to identify the figured elements of the blood and associate them with their functions; become familiar with the microscope.

General aims The main objective of the resource is to identify the components of blood cells by observing a virtual slide of blood smear. The identification is mainly based on the observation of the presence or absence of a nucleus and cytoplasmic granules. Other useful features are cell size, nuclear size and shape, chromatin functionality and cytoplasmic staining. The resource ends with a quiz that greatly helps students in the classification and recognition of the different classes of white blood cells Linguistic aims • To improve language skills in L2 • To enrich scientific vocabulary • To know how to move from one linguistic register to another • To produce clear and coherent texts in L2 • To summarize written texts Subject specific aims • To know the composition of the blood and its main functions; • to describe the characteristics of its corpuscular component; • to connect the different cellular elements of the blood (red blood cells, white blood cells, platelets) with their functions; • to understand the importance in the functionality of red blood cells; • to identify the component cells of a typical blood smear; • to distinguish the different classes of white blood cells. Target group age 14-15 years Level of competence in English (CEFR) B1 Time required to use the resource with the students 3h 2h analysis of the resource 1h laboratory activity How to use it The teacher introduces and illustrates the resource with a frontal and interactive lesson, involving students and stimulating their attention and participation. The class is divided into small groups, each of which is dedicated to analyzing and comparing what has been learned. To facilitate understanding of the text, the resource is divided into short paragraphs that students must summarize and schematize. In addition, students must learn to recognize the various blood cells by studying and comparing the various images present in the resource. This will help them recognize and analyze the slides they will then see during laboratory activity. In the laboratory activity, students will have to observe a slide of blood smear already prepared (in school laboratories fresh blood use is forbidden). A 200-fold magnification is sufficient to observe and identify the different cell types. Numerous erythrocytes and some isolated white blood cells can be observed At the end of the observation and identification of the cells, the students will have to make a short report, answer a questionnaire provided by the teacher and discuss both within their own group and with the other groups. Finally, to enhance digital skills, each group will have to present their work done in a power point, or with a movie, with an animation, etc. The work will be presented to different classes Possible difficulties for the students Recognition of leukocytes under a microscope

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