The subjects to be prepared in the fifth grade are: simple scales (you can buy them or make them yourself), geometric figures made of cardboard (parallelogram, triangle, trapezoid) and dice. In addition, some school tools should be arranged and prepared according to the needs of teachers.
Compasses will be used in the first volume of the sixth grade of the People's Education Edition.
Extended data:
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How to use compasses
1. Measure the distance between the two feet of the compass with a ruler as the radius.
2. Fix the end in one place with a needle as the center of the circle.
3. Turn one end once with a pencil.
Matters needing attention
1, the height between the two legs of the compass should be the same.
2. In the process of drawing a circle, the compasses should be slightly inclined by about 30 degrees to make the drawn round lines smooth.
In the process of drawing a circle, the end with the needle (that is, the center of the circle) can't move.
4. In the process of drawing a circle, the distance between two feet (i.e. radius) cannot be changed.
5. Be careful when drawing.
People's Education Press: Introduction to the first volume of the fifth grade mathematics textbook.
Baidu encyclopedia-compass