Didactic´s App

Ruler

It is an application for Android mobile devices, very useful to work the measurement in class and also in our daily life. We can download it for free in the Play Store.

It has a simple and straightforward design. In the options we can calibrate the ruler so that its measurement is as accurate as possible. It allows to measure in centimeters and inches.

You can take advantage of this resource in several ways, for example:

1. We can work on the idea that the measuring instrument can give different measurements when it is not calibrated. This can happen to us with other instruments that we use in the future. For this we can choose an object from the class and each student, or in small groups, measures with a different tablet. Then the measurements obtained are compared and the median will be chosen.

2. Using a physical ruler, we place it on top of the tablet to calibrate it, and thus make exact measurements.

3. Measure different objects in the classroom, for this the students must know that this rule is used to measure straight lines, for curved lines we will need another instrument that adapts to them.

4. Present the activity of measuring household objects, for this they will have to install the application on a personal device of the child or the parents.

5. Measure the growth of a plant that they are cultivating in the class. To do this, a systematic record of growth will be carried out through regular measurements.