Name of teaching material
Rulers set (a pair of triangles, a protractor, a compass) marketed product
Japanese Page URL
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| Target |
Younger and older children receiving education equivalent to their academic years Elementary, lower secondary, and upper secondary divisions |
|---|---|
| Disability category | visual impairment |
| Teaching units / Applicable scenes | arithmetic, mathematics |
| Specific purposes | Students can draw lines or measure the degree of an angle, making use of their tactual senses. |
| Considerations for disability characteristics |
The ruler has small holes that the users can use to fix it on the paper with pins, so the users can draw lines. This enables the users to use both hands effectively and concentrate on their work. The triangle has a slide space, which is useful in drawing parallel lines with two triangles. The protractor has four arches, which makes it easier for the users to match up the protractor and the base line by means of their tactual senses. |
| Expected effects and results | Students can draw lines or measure the degree of an angle, making good use of their tactual senses. |
| How to use |
【To measure the degree of an angle】 First, users match up the protractor with the base line of the angle. Then they look for the other line of the angle and read the scale. 【To draw circles with a compass】 Users insert a pin into the hole at the rounded edge of the compass and fix the compass on the paper. Then they put a ballpoint pen into one of the other holes of the compass and draw a circle. |
| Related teaching materials and information |
In order to fix the compass and the paper, students should use the paper which is thick enough (about 5mm). In the case of drawing lines on raised-line paper, students should use a ballpoint pen which has no ink. In the case of using the protractor to draw lines, students need to know how to use their hands in order to insert a pin into the right hole. Users need to know how to hold a pen when they are drawing lines to check them with their fingers after they have drawn them. |
| Useful for other students |
- Informant Special Needs Education School for the Visually Impaired, University of Tsukuba
- Keywords measurement, draw lines, compass, a triangle, protractor, observation through tactual sense
- Created 2017-11-13 11:13:49
- Updated 2020-06-08 15:20:58