Table 4.

Weekly average CMD of the three teachers (in minutes).

Description	Group A1							Group Average
Students	ST1-3	ST4-6	ST7-9	ST10-12	ST13-15	ST16-18	ST19-21
CMD 1 (Audio)	16	19	12	23	19	18	18	17.857
CMD2 (Video)	23	18	23	12	19	16	15	18.000
CMD3 (Text)	18	21	8	15	20	11	23	16.571
Teachers’ involvement with students	27	23	27	29	24	29	28	26.714
Class total duration	45	45	45	45	45	45	45	45.000
Teaching duration per class	30	30	30	30	30	30	30	30.000
Students’ average (CMD 1, 2, 3)	19.00	19.33	14.33	16.67	19.33	15.00	18.67	17.476
	Group B1
Students	ST22-24	ST25-27	ST28-30	ST31-33	ST34-36	ST37-39	ST40-42
CMD 1	8	20	17	23	11	14	20	16.143
CMD 2	23	8	21	22	12	23	8	16.714
CMD 3	19	13	8	23	10	17	18	15.429
Teachers’ involvement with students	24	30	30	28	28	25	25	27.143
Student’s average (CMD 1, 2, 3)	16.67	13.67	15.33	22.67	11.00	18.00	15.33	16.095
	Group C1
Students	ST43-45	ST46-48	ST49-51	ST52-54	ST55-57	ST58-59	ST60-63
CMD 1	12	10	19	10	19	19	23	16.000
CMD 2	14	11	21	22	21	9	20	16.857
CMD 3	18	22	20	23	16	8	11	16.857
Teachers’ involvement with students	30	30	28	26	26	27	24	27.286
Student’s average (CMD 1, 2, 3)	14.67	14.33	20.00	18.33	18.67	12.00	18.00	16.571
	Group D1
Students	ST64-66	ST67-69	ST70-72	ST73-75	ST76-78	ST79-81	ST82-84
CMD1	13	8	9	21	10	15	21	13.857
CMD2	8	11	13	19	23	15	20	15.571
CMD3	15	20	11	12	22	14	10	14.857
Teachers’ involvements with students	28	26	26	24	24	28	30	26.571
Student’s average (CMD 1, 2, 3)	12	13	11	17.33	18.33	14.67	17	14.762

Authors’ computation. The average time was computed based on individual teacher’s recorded minutes for each student.