We will measure the building in five ways:

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1. Using the model of an isosceles triangle, one of the legs of which will be the school. To do this, take the triangle and put it to the eye so that one side is parallel to the ground, and the other coincides with the roof of the building. Measure the child's height and the distance from his feet to the building. It is 12.1 m.



2. Let's take a photo of a child against the background of a school. The child's height is 1.3 m, his height in the photo is 2 cm, the height of the school in the photo is 15.7 cm. Let's determine the real height of the school: 1.3 × 15.7 / 2. In this case, the height of the school is 10.2 m.



3. Measure the length of the school using a pencil. Place the child near a school column, and move away so that you can see the entire building. Stretch out your hand with a pencil in front of you so that it completely matches the dimensions of the school. Then turn the pencil 90 degrees so that it is parallel to the ground, while the base of the pencil should match the base of the school. Ask the child to move to the side, reach the imaginary tip of the pencil and stop. Now measure the distance from the school to the child - this will be the length of the building.



4. On a windless day, we will use a helium balloon with a string attached as a ruler. Let the balloon go until it reaches the top of the school. Measure the length of the string and determine the height of the school.



5. On a sunny day, we will measure the length of the school using the shadow. We will measure the length of the child's shadow and the length of the school's shadow. Then we will bring the measurements to the required proportions and find out the length of the building: the child's height / the length of the school's shadow × the length of the child's shadow.



Now let's compare the results and find out which buy nepal telemarketing data method was more accurate.

Real height Helium balloon Pencil Triangle Shadow Photo
12.3 m 12.26 m 12.25 m 12.20 m 12.15 m 10.2 m
Format the work, prepare for the defense and questions. In order to successfully defend their project, the child must do all the main work on the project themselves, but this does not mean that they should be left alone with the task. A parent or teacher can help define the goals, tasks and sequence of actions, suggest where to look for additional information, how best to illustrate the experiments and show the results.

Elena Deep.

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