
The Starting Point of Exploring the Fine World: Why Choose Tsinghua 81204 Handheld Sieve as a Teaching Aid?
It is essential to introduce authentic scientific research tools into elementary science classes. The Tsinghua 81204 handheld screen is such a device that can stimulate students' interest and high practicality. It is designed for the educational field, with precision and durability, to help children intuitively understand the concept of particle size differences.

Triple Specifications, Unlimited Possibilities: How to Use Different Apertures to Achieve Accurate Sample Classification?
The hand-held sieves come in three different aperture sizes (large, medium and small) for coarse sand, fine sand and other particulate materials. Through simple superposition combination, students can easily carry out multi-level sample separation operation, and learn to choose the appropriate screening scheme according to different needs.

Simple and easy-to-learn operation process: a scientific experiment artifact that primary school students can easily master
The handheld screen is compact and reasonable in design, and the overall weight is moderate. Even young students can hold it with one hand and complete the shaking action. With a detailed operating guide, under the guidance of the teacher, each child can complete the entire screening process independently.

From Classroom to Lab: Practical Case Sharing of Hand-held Sieve in Diversified Scenarios
In addition to the extensive use in the school classroom, Tsinghua 81204 handheld screen is also suitable for all kinds of small scientific research projects and home DIY activities. For example, soil composition testing, seed screening or coffee bean grinding degree assessment and other fields have its figure.

Improving Students' Practical Ability: Cultivating Students' Observation and Analytical Thinking Combined with Practical Application
By personally participating in each experimental session, students can not only deepen their understanding and memory level of theoretical knowledge, but more importantly, they have cultivated keen and meticulous observation ability and rigorous data recording habits.

Durable and trustworthy: Why is this handheld screen ideal for school purchases?
The manufacturing process is made of high-quality stainless steel, which has strong corrosion resistance. Even if it is in a humid environment for a long time, it is still not easy to rust and damage; at the same time, the reasonable structural layout makes disassembly and cleaning very convenient and rapid. Meet the stringent requirements of daily high-frequency use.
