=====+============+=======+=============+============= Age |Woody-McCall|Alpha 2|Visual Vocab.|Kelley-Trabue -----+------------+-------+-------------+------------- 8—0 | 12.00 | 4.50 | 3.60 | 4.30 9—0 | 15.16⅔ | 4.98 | 4.32 | 5.00 10—0 | 18.33⅓ | 5.46 | 5.04 | 5.65 11—0 | 21.50 | 5.94 | 5.76 | 6.35 12—0 | 24.66⅔ | 6.42 | 6.48 | 7.05 13—0 | 27.83⅓ | 6.90 | 7.20 | 7.70 -----+------------+-------+-------------+------------- III. Arrange these Arithmetic Ages of all the children of your school in order from high to low with the names opposite the scores in the extreme left-hand column of the paper. At the right have parallel columns of the grades. Check the grade of each child in these columns. You will then have a sheet like this: ================+======+=================== | | Grade | +---+---+---+---+--- Name |Arith.| 4 | 5 | 6 | 7 | 8 | Age +-+-+-+-+-+-+-+-+-+- | |B|A|B|A|B|A|B|A|B|A ----------------+------+-+-+-+-+-+-+-+-+-+- Gertrude Smith | 180 | | | | | | | | |#| | +-+-+-+-+-+-+-+-+-+- Saul Sampson | 176 | | | | |#| | | | | | +-+-+-+-+-+-+-+-+-+- Ed Jones | 176 | | | | | | | | |#| | +-+-+-+-+-+-+-+-+-+- George Calut | 172 | | | | | | | | | |# | +-+-+-+-+-+-+-+-+-+- Ida Henry | 172 | | | | | | | | | |# | +-+-+-+-+-+-+-+-+-+- Raymond Teller | 172 | | | | | | | | | |# | +-+-+-+-+-+-+-+-+-+- Ed Hoard | 172 | | | | | | |#| | | _Etc._ Do the same with each of the tests. It is clear that, independent of the unreliability of the test, if your school were perfectly classified all the 8th grade children would come first on each relation sheet and then the 7th grade children, etc. You have now a picture of the overlapping of your grades. Regrade in reading and arithmetic. Draw horizontal lines across these relation sheets at the points of delineation. Divide your total number of children by the number of teachers available and then make a class division by the number of pupils, that is, call the upper one-sixth of the total number of pupils grade 8 in this subject, the next one-sixth, grade 7, etc. Teach all grades of arithmetic at the same time and all grades of reading at the same time. You can now send each pupil to the grade in which he belongs in each subject.