classes:  lecturer. About grammar lessons on Moodle Doubledot the teacher only marks whether to do it or not and counts the number of lessons without seeing whether the student is doing it correctly or not and does not correct grammar lessons on Moodle.  curriculum. About grammar lessons on Moodle Doubledot the teacher only marks whether to do it or not and counts the number of lessons without seeing whether the student is doing it correctly or not and does not correct grammar lessons on Moodle.  facility. About grammar lessons on Moodle Doubledot the teacher only marks whether to do it or not and counts the number of lessons without seeing whether the student is doing it correctly or not and does not correct grammar lessons on Moodle.  general. About grammar lessons on Moodle Doubledot the teacher only marks whether to do it or not and counts the number of lessons without seeing whether the student is doing it correctly or not and does not correct grammar lessons on Moodle.