1. Making the trunk and head: First, cut the colored cardboard into appropriate sizes to make the trunk and head respectively. The torso can be slightly larger to support the structure of the head.

2. Draw biological features: Draw corresponding patterns on the trunk and head according to the biological features to be made. For example, if you want to be a cat, you can draw the cat's ears, face, body and other parts on cardboard.

3. Cut and paste: Cut the painted trunk and head and stick them together with double-sided tape to form the basic shape of the creature. Pay attention to keep the shape symmetrical.

4. Making limbs: According to the biological characteristics, cut off four legs (or corresponding limbs) and stick them on the bottom of the biological body with double-sided adhesive tape. Make sure the length and position of the legs are correct.

5. Perfect details: Add extra details to the cardboard, such as eyes, nose, mouth, etc. You can make eyes with small round black cardboard and stick them with double-sided tape.

6. Adjustment and optimization: check all parts of the biological model to ensure that their positions and angles are correct and their symmetry is good. Adjust and optimize the model as needed.

7. Finish: Make a biological model after it is finally confirmed that there are no defects.

The role of biological model making

1. Promote understanding and memory: By making biological models, students can see the structure and function of organisms more intuitively, so as to better understand the knowledge points related to memory. This intuitive learning method is more effective than simply reading textbooks or listening to teachers.

2. Improve hands-on ability and innovative consciousness: Making biological models requires students' practice, which can train students' hands-on ability and problem-solving ability. In the production process, students need innovative thinking and design models that meet the requirements, which can cultivate students' innovative consciousness and ability.

3. Promote the integration of interdisciplinary knowledge: Biological modeling involves multidisciplinary knowledge, such as physics, chemistry and mathematics. By making biological models, students can integrate the knowledge of these disciplines and deepen their understanding and application of interdisciplinary knowledge.

4, improve learning enthusiasm: biological model making is an interesting way of learning, which can attract students' attention and improve their learning enthusiasm. By making models by hand, students can feel the interest in learning X, and thus love biology more.

5. Advocate cooperative learning: In the process of making biological models, students need to cooperate with each other to complete the models together. This can cultivate their teamwork and communication skills, and also deepen their understanding and application of biological knowledge.

6. Help to form a correct biological concept: By making a biological model, students can have a deeper understanding of the structure and function of organisms, thus forming a more scientific and accurate biological concept.

7. Preparing for the exam and entering a higher school: In the entrance examination, the ability to make biological models is an important assessment index. By making biological models, students can better cope with the related problems in the entrance examination and improve their test scores.