| Dr. Montessori giving a lesson in touching geometrical insets | Frontispiece |
| | FACING PAGE |
| Dr. Montessori in the garden of the school at Via Giusti | 144 |
| Children learning to button and lace. Ribbon and button frames | 145 |
| Children playing a game with tablets of coloured silk | 186 |
| Girl touching a letter and boy telling objects by weight | 187 |
| Pupils arranging colours in chromatic order | 187 |
| Didactic apparatus to teach differentiation of objects | 190 |
| Blocks by which children are taught thickness, length and size | 191 |
| Geometric insets to teach form | 194 |
| Geometric insets and cabinet | 195 |
| Cards used in teaching form and contour | 196 |
| Frames illustrating lacing; shoe buttoning; buttoning of other garments; hooks and eyes | 200 |
| Tablets with silk, for educating the chromatic sense | 201 |
| Didactic apparatus for training the sense of touch, and for teaching writing | 282 |
| Children touching letters and making words with cardboard script | 283 |
| Montessori children eating dinner | 348 |
| School at Tarrytown, N. Y. | 349 |