The document presents statistical data on student grades in the first semester of the 2017-2018 school year for the third grade at a technical secondary school in Querétaro, Mexico. It includes grade distribution charts for Spanish, English, math, chemistry, and technology classes in ten third grade groups (3A through 3L). The charts break down student counts by grade ranges of 5.0-5.9, 6.0-7.0, 7.1-8.0, and 8.1-10 for each subject and class across five grading periods.