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Scientific concepts. The triangular frame has stability, and the use of the triangular frame can be used to strengthen the frame structure.
Process & Methodology.
Reinforcement of the frame structure with a triangular frame.
Design and fabricate a frame structure that can support heavy objects.
Emotions, attitudes, values.
Experience the necessity of using your brain and hands-on cooperation to make a framework, and get the joy of success.
Preparation for teaching. For small groups: chopsticks or plastic straws, rubber bands, scissors.
Teaching process: 1. Introduce new lessons.
2. Study the simple framework.
1. Practical experience.
Use chopsticks to tie a corner frame and a rectangular frame.
What is the difference in observing the forces of the sutras?
Which one is easy to deform?
Can a rectangular frame be reinforced?
2. Group operations according to requirements, and make records of various shapes.
What is the role of adding a diagonal rod?
And let's talk about the characteristics of the triangular frame.
3. Make a sturdy cube frame.
1. Please don't think about how to make a sturdy cube frame.
2. To make a more complex structure, you should first draw a sketch and calculate the material.
3. How many crossbars do you need to make a solid cube frame? How many vertical rods? How many diagonal rods? Are they the same length?
4. What is the function of each oblique rod? How many triangles are there in a frame?
5. Test the bearing capacity of our cube.
How many books can it carry on our cube frame?
4. Summary.
Board book design: the principles of making the shapes.
Stable. High pressure.
Less material.
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The way to write the first volume of the scientific research report in the sixth grade is to write the name of the science, then the time point of the science and the way of science, and then the main content of the scientific process, that is, to write some of the processes of doing experiments by yourself, and to prepare the materials before doing the experiments.
In addition, the problems encountered in the process of doing experiments and the results observed during the experiment, including the results observed by oneself with the sense of smell or vision, can be written into the scientific research report.
Then, in addition to writing about your own observations, you can also write about your own summary of whether the experiments you have done are consistent with the book. Therefore, the above is a way to write a scientific research report in the first volume of the sixth grade.
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