Help

Can you please verify if i did not some mistakes" my opinion the biggest problem of our school are the conveniences.Some walls even have cracks whitch is a founder sign of the insecurity of children and teachers,especially in case of unwanted calamities. The building where we spend the most of our time was build and designed a long time ago so it must be renovated. In order to acheve this point,is going to be used the biggest part of the sum.Here I have to mention our gym! On its walls yhe mold multiplies each year,again the old equipment in a little number and in winters it is impossibly cold,as in other classroms too.Another very important point is the equipment which is so old that it hardly works.Only for 1 year and a half,students have the possibility to work at the classes of informatics with some performant computers,the ones which were used until these were a real disaster.Let's not forget about teachers because a big part doesn't have any performant equipement and it is very hard to study and of course to teach without all the instruments,it has its consequences. and last but not least,to make for each students lockers on the halls similar to the well-developed countries like Uk,France etc.
It is a big problem for students.Each day they carry on their back about 6-8 kg whitch is very hard as well as unhealthy.Also they don't have any place for their personal things like the Sports equipment or the coats etc