How Montessori Materials Provide a Strong Educational Foundation
Unless you are a trained Montessori teacher or have an in-depth understanding of the Montessori Method, there is a certain mysticism surrounding Montessori materials. Young parents often ask why their toddler is sweeping the floor or polishing so many cups, while parents of elementary-aged children want to know how Bead Chains and Binomial Cubes lay the foundation for advanced principles of mathematics. We love answering these questions and understand Montessori can be abstruse — especially for newcomers — so we created this page to shed some light on the science and philosophy behind key Montessori materials.
If you’re looking for more information on the pedagogy underpinning the Montessori classroom materials, check out our Montessori Method page.
Montessori materials explained
Montessori materials are didactic, meaning they are specifically designed to teach. Many of the didactic materials found in Montessori classrooms were originally designed by Dr. Montessori and are based on her extensive study and experience teaching children.
Montessori materials vary by subject and developmental phase, but they share a common pedagogy that informs several core tenets:
- Simple to complex
- Indirect preparation
- Control of error
- Attractive and inviting
- Coordination of movement
Let’s take a closer look at each.
Simple to complex
When most Montessori materials are introduced to a child, they are intended to teach a single skill or concept. This initial concept is simple — like recognizing a sound or determining a difference. Once the child has mastered that first concept, a slightly more advanced concept is introduced. Most Montessori materials follow a logical, developmentally appropriate progression with each concept building on the last and becoming more complex. As the American Montessori Society (AMS) explains, “Montessori students don’t just memorize facts and figures. They also learn the ‘hows, ‘whens, and ‘whys,’ ensuring that learning takes place on a deep and fundamental level.”
Indirect aim
Montessori materials often have a direct aim and an indirect aim. Materials are designed to introduce a concrete principle which ultimately lays the foundation for an abstract idea. For example, a bead chain might be introduced as a simple counting activity (the direct aim) but in counting the beads the child develops an abstract understanding of addition (an indirect aim), and later, multiplication and volume. The idea here is that familiarity with a concrete concept builds confidence and begets future interest, leading to a more robust understanding of more difficult principles down the line.
Control of error
Montessori materials are designed to provide feedback in real time, empowering the child to recognize, correct, and learn from an error without adult intervention. The teacher is the guide, introducing the material, instructing on its proper use, and offering assistance if necessary, but the child steers the actual learning process. The control of error imbued in Montessori materials empowers the child to problem-solve, building their sense of self-motivation, confidence, and independence.
Attractive and inviting
Montessori materials have an intentional aesthetic appeal designed to attract and hold a child’s attention. They are often made of natural materials that are both durable and inviting to the touch — like wood, glass, and cloth. There is a misconception that Montessori materials and Montessori toys are uniformly dull, but Dr. Montessori was deeply aware of how colors attract children and designed her materials accordingly. For example, after observing that children naturally gravitated toward pink objects, Dr. Montessori used the color pink for several key materials including the Sandpaper Letters, the Moveable Alphabet, and the Pink Tower.
Coordination of movement
Many materials are introduced as precise, tactile activities that require some coordination of movement. This allows children to refine their large and fine motor skills and develop a potent sense of muscle memory. Polishing a cup prepares the hand for the circular motions of writing. Using tongs to transfer objects from one cup to another develops the grip they will need to hold a pencil. The Sandpaper Letters introduce the alphabet through touch; the teacher makes the letter’s sound while helping the child trace the letter, utilizing their muscle memory to forge a connection between the letter’s shape and its sound. Young children are often drawn to activities that require movement and the repetition of these physical actions solidifies the associated concept and develops critical dexterity.
Contemporary educators refer to this tried-and-true Montessori approach as “multi-sensory learning,” and have made it the foundation for high-quality early childhood programs, particularly those focused on the science of reading.
The child gives us a beautiful lesson – that in order to form and maintain our intelligence, we must use our hands.
Practical Life Work
Dr. Montessori observed that children were naturally drawn to adult work and envisioned the classroom as a “Children’s House,” complete with the regular maintenance and operation of that house like sweeping, dusting, and dressing. This practical life work helps build confidence, maturity, responsibility, and independence in the individual and contributes to a shared sense of classroom belonging. Practical life work also helps children develop a sense of order, process, and practice, indirectly preparing them for academic work.
Sensorial Work
Practical life work like pouring, sorting, and preparing snacks is also often sensorial work, meaning work that helps develop the five senses. Children often learn first by seeing, and many materials are introduced by the visual discrimination of color, form, and dimension. Listening activities help children differentiate sounds and tones. Olfactory materials, like the Smelling Bottles, allow children to develop their sense of smell. Numerous materials use touch to foster kinesthetic learning and strengthen hand-eye coordination, dexterity, and motor skills.
Directory of Montessori Classroom Materials
Each Montessori material was carefully designed with a precise function and logical progression. In this Materials Directory, we’ll explain how key Montessori materials work and what skills they teach.
Note: Materials are regularly being added to this section, so be sure to check back for more, or contact us if you’d like more information on a material not currently represented here.
Sensorial Materials
Montessori Bells
auditory discrimination | order and sequence
What are the Montessori Bells?
The Montessori Sound Bells are a set of 26 bells — 13 in a working set and 13 in a control set — arranged in a chromatic scale. Each bell produces a distinct pitch and is mounted on a base colored black or white, mirroring the keys of a piano. Children use a small wooden mallet to produce sound and a cloth-covered dowel to dampen it.
What do the Montessori Bells teach?
The Montessori Sound Bells offer a multi-sensory experience that fosters various developmental and musical skills, such as pitch awareness, scale structure, and melodic patterns. By exploring different pitches and tones, children can develop and refine their auditory discrimination skills, which are essential for language and reading development. The color-coded bases provide a visual aid, allowing children to self-correct their placement of the bells, reinforcing their understanding of order and sequence. Additionally, the use of the bells promotes concentration, coordination, and independence, as children are responsible for handling and storing the materials properly.
Color Boxes
chromatic sense | fine motor skills
What are the Color Boxes?
The Color Boxes are sensorial material comprised of matching colored tablets. Color Box 1 is usually introduced to children in Lower School and contains three pairs of tablets in the primary colors: blue, red, and yellow. The teacher removes each colored tablet by touching only the rectangular frame on the sides using the “pincer grip” and randomly places the tablets in front of the child. The teacher picks up a tablet, shows it to the child, names the color depicted on the tablet, and places the tablet in front of the child. The child is then invited to find the tablet’s matching pair and place it next to the original. This continues for the remaining colors.
Color Box 2, introduced to the child once they’ve demonstrated mastery of the primary colors, contains eleven pairs of tablets in a broader range of colors. For Color Box 3, instead of matching pairs of colors, students are asked to delineate between 7 tablets depicting shades of nine different colors — blue, red, yellow, green, orange, purple, grey, brown, and pink — and order them according to the gradient (lightest to darkest, or darkest to lightest).
What do the Color Boxes teach?
The Color Boxes primarily teach children “chromatic sense” — the perception and differentiation of colors. The initial act of matching colors solidifies the link between the color and the word that describes it. Later, when children get to Color Box 3, they expand their vocabulary of colors to include a spectrum of shades (for example, the child learns “blue” isn’t just one thing, but can be “light blue,” “dark blue,” or anything in between). In addition to teaching children to perceive the nuances of color, the Color Boxes indirectly build the fine motor skills necessary for handwriting by strengthening the child’s “pincer grip.”
Pink Tower
fine motor skills | indirect preparation
What is the Pink Tower?
The Pink Tower is comprised of ten cubes ranging from 1 cubic centimeter to 1000 cubic centimeters. The size progression gives children an early sense of length, width, height, and weight. Unlike traditional blocks, The Pink Tower is uniformly colored so children can concentrate on visually discriminating between the sizes of the blocks. The color is also intentional; Dr. Montessori discovered pink objects were most frequently chosen by children and gave the eye-catching color to this quintessential Montessori material.
What does the Pink Tower teach?
Assembling the Pink Tower requires dexterity and control, helping to develop fine motor movements. Children often make labels to describe the varying sizes of the Pink Tower blocks, building verbal and written skills. The Pink Tower also embodies the idea of “indirect preparation.” Though it is not introduced as a mathematical exercise, the material’s implicit geometry is frequently referenced when older children begin working on squaring and cubing, volume exercises, and even algebra.
Language Materials
Moveable Alphabet
language skills | simple to complex
What is the Moveable Alphabet?
The Moveable Alphabet is a wooden box (or boxes) with 26 compartments, each containing multiple copies of the same cursive letter. As with the Sandpaper Letters, consonants are pink and vowels are blue. The letters are arranged alphabetically and children are instructed to return them to the box in alphabetical order, starting with the top left corner and moving from left to right.
What does the Moveable Alphabet teach?
The Moveable Alphabet is a cornerstone of the Montessori language materials. It is introduced to reinforce the phonetic sound of each letter. Children are initially instructed to find a specific letter from the box and remove it. Once the child has mastered individual letters, they are given simple three-letter words and asked to identify the letter that best represents each sound in the word. They are then given short phrases and asked to make multiple words with the Moveable Alphabet, ultimately going on to write short stories with the letters.
Sandpaper Letters
fine motor skills | language skills | handwriting
What are Sandpaper Letters?
The Sandpaper Letters are 26 wooden cards each depicting a lowercase cursive letter rendered in tactile sandpaper. The cards containing consonants are the same attention-holding shade of pink Dr. Montessori selected for the Pink Tower, while the vowel cards are delineated by blue backgrounds.
What do the Sandpaper Letters teach?
The Sandpaper Letters use muscle and visual memory to teach children the sounds of the alphabet. They are guided to trace the letter while the teacher makes the sound the letter describes. Where other early childhood materials can be quite hands-off, the Sandpaper Letters require precise guidance so that the child learns to trace the letter correctly. Repeatedly tracing each letter activates the child’s muscle memory, indirectly preparing them for writing and reading.
Math materials
Bead Chains
number patterns | SIMPLE TO COMPLEX
What are the Bead Chains?
There are ten sets of colored Bead Chains displayed in a bead chain cabinet. Each chain contains sets of the same number of beads with each bead representing a single unit. The Bead Chains are accompanied by color-coded number tags used to mark the progression of beads. For example, the yellow Four Bead Chain is four segments in length with each section containing four beads. If the child counts each section and places the corresponding number tag at the end of each section, they will see that this chain has sixteen beads in all, marked as 4, 8, 12, and 16.
What do the Bead Chains teach?
The Montessori Bead Chains are a key component of the Montessori math materials and provide a concrete visual and tactile representation of number quantities and patterns. When the Bead Chains are first introduced, children physically count the beads to master the concept of quantity. The repeating bead sequences on each chain facilitate additional skill development, such as skip counting, number patterns, and multiplication.
The Bead Chains are also designed to fold into squares, introducing the complex concept of squaring numbers. For instance, folding the sections of the four bead chain end-to-end creates a square that visually represents 4 taken 4 times to make 16. Furthermore, if a series of squared four chains are stacked on top of each other, it forms a cube of 64 beads, introducing the child to the concept of cubing.
Geometric Insets
geometry | simple to complex
What is the Geometric Insets Cabinet?
The Geometric Insets Cabinet (also known as the Insets of Equivalence) contains thirteen green metal trays of various shapes, each of which contains a set of red metal insets topped with a knob to facilitate intuitive removal from the tray.
The first tray, typically introduced to children in Lower School, consists of ten congruent circles. The first circle contains a single whole inset that the child can lift out and replace using the pincer grip. The second circle contains two half-circle insets, the third circle is divided into thirds, and so on. Regardless of the division, when the insets are placed in the tray, they appear identical in shape and size, indirectly introducing the child to the concept of congruency. The shapes in the trays advance from circles to squares, triangles, and more abstract shapes as the child progresses through the cabinet.
What do the Geometric Insets teach?
The Geometric Insets teach children core principles and symbols of fractions and geometry, such as congruency (≌), similarity (∾), and equivalency (≣). After mastering these concepts, the insets are used as a tool to teach children how to find the formula for area. Once again, the material is designed to start simple (determining the area of a square) and become more complex (determining the area of a triangle or a rhombus) as mastery is achieved. The final inset, typically introduced in Upper Elementary, uses four different colored insets to teach the child Euclid’s Pythagorean Theorem (a2 + b2 = c2 ).
Knobbed Cylinders
geometry | fine motor skills
What are the Knobbed Cylinders?
The Knobbed Cylinders consist of four sets of wooden cylinders and an accompanying block of wood with appropriately-sized holes for each cylinder. The cylinders are topped with a knob the child grips to remove and replace the cylinders. Typically the first Knobbed Cylindar set contains cylinders that increase in height and diameter, the second contains cylinders that increase in diameter but are the same height, the third contains cylinders that increase in diameter and decrease in height, and the fourth contains cylinders that increase in height but have the same diameter.
What do the Knobbed Cylinders teach?
Knobbed Cylinders are a sensorial material designed to help young children learn to visually discriminate between size and dimension. Children are instructed to remove and replace the cylinders in sequential order. Once they’ve mastered this, the teacher might remove the cylinders, put them in random order on the table, and have the children return the cylinders to the correct holes using sight, touch, and trial and error (the Knobbed Cylinders are an example of “control of error” since the children can clearly see whether or not a cylinder fits). In addition to helping children master dimension, the Knobbed Cylinders indirectly prepare the child for writing since the knobs require the child to use a “pincer grip” which helps build the fine motor skills necessary to hold a pencil.