A little list I made for parents…helpful when researching Montessori Sensorial lessons for your child!
Advanced Organizer: Indicates the broad goal of the activity to the learner
Auto-Education: Education that enables children to learn on their own
Bells: Mushroom-shaped bells that give a very clear tone
Blindfold: Makes the exercise a stereognostic (exclusive sense of touch) activity
Broad Stair (Brown Stairs): 10 prisms, which look as if each of the pink cubes had been lengthened to 20 cm
Classification: Categorizing objects or ideas based on some similar attribute
Color Tablets: Painted wooden rectangles with plastic handles
Concentration: The focusing of one’s energy, especially on a particular task
Confidence: The certainty of one‘s ability to perform a particular task
Constructive Triangles: 6 sets of flat colored triangles, stored in distinctive wooden boxes shaped like a triangle
Control of Error: The aspect of a material that gives a child feedback, such as a final puzzle piece that will not fit in if other pieces have not been put in correctly.
Control of Movement: Mastery of the use of the hands, fingers, wrists, and arms.
Coordination: Balance in using various parts of the body, especially the arms and legs
Cube Tower (Pink Cubes): 10 cubes, from 1 cm to 10 cm on a side
Didactic: Intended to instruct, especially by using hands-on methods.
Directress: The one who is observing, guiding, and preparing the child’s environment.
Extension: Adding steps to a lesson in order to increase difficulty.
False Fatigue: When the classroom energy escalates in the middle of a work session.
Geometric Cabinet: Contains 6 drawers of plan geometric figures: circles, quadrilaterals (rectangles and a square), triangles, polygons, etc. Cardboard cards with the same shapes for matching (three sets) and name labels for each shape
Grade: To arrange a set of objects according to a certain attribute (largest to smallest, thickets to thinnest)
Grasping: Enclosing an object using the whole hand or several fingers.
Independence: To be dependent and responsible for oneself.
Indirect Aims: Goals that prepare children for future work such as the decimal system, left-to-right, top-to-bottom order (directionality), development of pincher grip, metric system
Informal Diagnostic: An observation to determine a child’s basic abilities.
Isolation of Difficulty: The design of the materials to focus the child’s attention on one concept at a time. All attributes of the lesson remain constant, except for the one that is the focus
Isolation of Stimulus (Isolation of Sense): Only one sense of an object is focused on while others remain constant.
Knobbed Cylinders: 4 sets of cylinders, inset in blocks of wood. One set varies in diameter and height, one in diameter only, one I height only, and the fourth varies in both dimensions, but inversely—the cylinders go from wide and flat to tall and narrow
Knobless Cylinders (Colored Cylinders): 4 sets of the knobbed cylinders, but without knobs or blocks. These are color-coded and stored in colored boxes
Lesson: A prepared activity designed for a child to succeed at a task.
Long Rods: Ten 2 x 2 cm rods, ranging in length from 10 to 100 cm
Match: To place one object next to another object that is the same.
Materials: The items that the child will manipulate in a lesson.
Movement: How a child transitions from unconscious to conscious absorbent mind, especially through the use of the hands.
Objectivity: Characteristic of a lesson in which the directress focusing the child on the object.
Olfactory (smell): smelling
One-to-One Correspondence: Matching, as is one object to another object
Order: Regularity of events during their usual time and items in their usual place.
Point of Interest: What makes a lesson engaging…
Quality: the characteristics of an object such as roughness, smoothness, hardness, softness, color, taste, texture, weight, pliability
Rug: That which designates a child’s work area during a particular time.
Self-esteem: The acceptance and love of oneself.
Sense Education: The education and refinement of the senses.
Senses: Medium through which children interact with their environment (seeing, hearing, smelling, touching/feeling, tasting)
Sensorial Area: Area in a Montessori classroom that serves to refine the senses. This area also develops a child’s concentration, coordination, confidence, sense of order, and self-esteem.
Seriation: Putting objects or ideas in an order or series
Simplicity: Characteristic of a lesson in which the directress uses few words to describe it and there is the absolute truth in it.
Sound Cylinders: 6 red and 6 blue paired cylinders for shaking and listening
Stereognostic: Using the sense of touch exclusively to identify the form or shape of an object.
Tactile: Children learn from touching the objective
Three-Period Lesson: A technique used to establish the names or attributes of materials including naming, recognition, and pronunciation.
Transfer: Taking one item to a different location or container.
Tray: Item which stores or carries the containers and materials for a lesson.
Trinomial Cubes: a cube “puzzle,” in wooden boxes with patterns of red, blue, and black rectangles and squares on them
Variation: Varying a tool or material in a lesson while using the same amount of steps, in order to keep the lesson interesting.
Visual: Seeing the materials