The use of three-dimensional models of inorganic compounds

Three-dimensional models are ways of representing something in a less abstract way and closer to what our eyes perceive in reality. The three-dimensional models are those objects of exhibition that reproduce, to scale, forms of other real objects. These models present signs that make evident the relative shapes, dimensions and positions, and in some cases, also colors and movements. Other qualities escape the possibility of reproduction (texture, smell, density, resistance to compression, etc.) and with this they sign an unavoidable character of abstraction of these auxiliary means.

There is no doubt that using a three-dimensional model to learn chemistry is very appropriate to visualize certain concepts; In addition, they can make a class more entertaining for us students; although, it is clear that not all of us learn in the same way and that, always there will be those who do not need three-dimensional models to visualize in their mind a three-dimensional structure, manipulation, "touch the molecule" and "build it", can be something that helps to learn other people. Although the manufacture of these models can be complicated; At the time of arming, we can experiment and realize how our compound works and how it is formed. The models are extremely effective to visualize a compound from a less abstract angle that allows us to better understand everything about what we build.

The use of three-dimensional models is a great help to learn more easily any topic; in this case, by representing my inorganic ternary compound (nitric acid), I could better understand its composition, since, being handling the materials with which I developed my three-dimensional model, I realized that it is important to know how to manipulate the objects so you can create and experiment more easily. The use of a three-dimensional model is essential in the study and learning because it allows us to have a better perception of what we are seeing, these models give us a more interesting and out of the ordinary view that at the moment call our attention and make us want to to touch and experiment with them, which is important in our learning because that is how we connect more with the functioning of the environment.

Three-dimensional models are effective in our learning as students because they help us to understand much more easily the behavior and composition of the compounds that surround us.

VERBO “TO BE”: SER/ ESTAR

INFINITIVO                                  PRETERITO                            PARTICIPIO          

      To be                                            was                                          been

   Ser/ estar                                      fui/ era                                   sido/ estado

                                 

El verbo 'To be' tiene una importancia especial en inglés. Se corresponde a los verbos españoles "ser" y "estar". Dependiendo del sentido de la frase deduciremos de cuál de los dos se trata.

FORMA AFIRMATIVA              FORMA NEGATIVA        FORMA INTERROGATIVA

I am (I'm)                                    I am not (I'm not)                           am I?

 soy, estoy                                   no soy, no estoy                 ¿soy yo?, ¿estoy yo?

you are (you're)                      you are not (you're not)                    are you?

 eres, estás                                  no eres, no estás                 ¿eres tú?, ¿estás tú?   

he is (he's)                                 he is not (he's not)                          is he?

 él es, está                                    él no es, no está                   ¿es él?, ¿está él?

we are (we're)                          we are not (we're not)                     are we?

 somos, estamos                      no somos, no estamos           ¿somos?, ¿estamos?     

you are (you're)                       you are not (you're not)                    are you?

 son, están                                   no son, no están                      ¿son?, ¿están?

they are (they’re)                     they are not (they're not)                  are they?      

 ellos son, están                        ellos no son, no están              ¿son, están ellos?      

 PRESENTE CONTINUO

Form (Forma)Para formar el presente continuo se utiliza el verbo auxiliar “to be” y el verbo+ing.