1. The edge of the edge is round, strongly hard, not easy to break and highly translucent.
2. Strictly Selected High Resistance ABS plastic, environmental and tasteless friendly.
3. When opening and closing gently, as well as a simple operation, the cognitive skills of students can strengthen and improve the quality of learning.
4. The surface is soft, the form regularly and the self -adhesive scale can train the practical skills of the students.
5. Bank -shaped plastic plate with a soft and animated curve, which shows the cone and the circle with the height as a radius.

Technical data:
Article type: Volume demonstrator for geometric shapes
Material: plastic + pp
Image demonstration: In a conical cylinder with the same floor space and the same height: V-Cone = 1/3V
The cylinder is filled with a cone with water and is poured into the cylinder three times in a row, so that the cylinder has just been filled.
The experiment clearly demonstrated the volume ratio between the cylinder and the cone and the reason for the formula.
Self -adhesive can train students' skills.
Practical skills and deepen your knowledge of knowledge. Fill the cone with water, take it in a cylindrical tube and paste the division line in the horizontal line.
Cylinder size: approx. 10 x 15 cm / 3.9 x 5.9 inches
Kegel size: approx. 10.3 x 15.8 cm / 4.1 x 6.2 inches
Plastic film size: approx. 15.1 x 15 cm/5.9 x 5.9 inches

Packaging list:
1 x cylindrical Drum
1 x cone cube
4 x plastic film
1 x piece of pasta scale
2 x Blue cylinder broken down
2 x pink cylinder breakdown
17 x green cylinder