The Object Permanence Box — Ball Drop with Sliding Drawer is a Sensorial Montessori material designed for children aged 0-3, crafted by Nienhuis Montessori to AMI standards.
This beautifully crafted object permanence box features a sloped playing surface with a circular hole and a smooth-sliding drawer with a blue front panel. Designed for infants developing their understanding of object permanence, the box allows the child to drop the included yellow ball through the hole and retrieve it from the drawer below, reinforcing the concept that objects continue to exist even when out of sight.
“Children display a universal love of mathematics, which is par excellence the science of precision, order, and intelligence.”— Maria MontessoriThe Discovery of the Child
“The greatest sign of success for a teacher is to be able to say, 'The children are now working as if I did not exist.'”
— Maria Montessori, The Absorbent Mind
The Object Permanence Box with Drawer embodies Dr. Montessori's principle of isolating concepts for clarity of learning. By presenting one challenge at a time—the disappearance and reappearance of a single object—the material respects the absorbent mind of the infant. This work supports the child's need for repetition, a cornerstone of Montessori pedagogy that allows for deep concentration and mastery. The material's self-correcting nature, where the ball always reappears in the drawer, provides immediate feedback without adult intervention. This fosters independence and builds the child's confidence in their ability to impact their environment. The precise movements required—grasping, releasing, and pulling the drawer—align with Montessori's emphasis on purposeful hand development as preparation for future learning.
Each order includes everything needed for proper presentation and long-term use.
Follow the Montessori method of presentation for optimal child development.
Sit beside the child, not opposite. Slowly pick up the ball using thumb and two fingers
Hold the ball above the hole briefly to build anticipation
Release the ball through the hole with a clear, intentional movement
Pause for 2-3 seconds after the ball disappears
Slowly grasp the drawer knob and pull it open completely
Pick up the ball from the drawer and place it back in the starting position
Every material is carefully selected for durability, safety, and authentic Montessori experience.
Smooth plywood and solid wood provide durability while maintaining the natural sensory experience essential to Montessori materials.
Each material supports multiple areas of child development simultaneously.
Reinforces understanding that objects exist even when hidden from view, a crucial cognitive milestone.
Precise movements required to place ball in hole develop fine motor control and visual tracking.
Child learns that dropping the ball results in its appearance in the drawer, building logical thinking.
Discovering how to operate the drawer independently fosters cognitive development and self-confidence.
Designed for child-sized hands
Professional tips from AMI-trained guides to maximize the educational value of this material.
“Present this work when the child shows interest in dropping objects and watching them fall, typically around 8-10 months”
Ensure the child can sit independently before introduction to allow full concentration on hand movements
If the child struggles with the drawer, model just that movement separately before combining with ball dropping
Observe without interfering when the child discovers they can put their hand through the hole—this exploration is valuable learning
Everything you need to know about this material.
This object permanence box is designed for infants aged 6-12 months who are developing their understanding that objects continue to exist even when hidden. It's most beneficial when babies can sit independently and have developed a pincer grasp.
The object permanence box develops multiple skills: understanding object permanence (crucial for cognitive development), hand-eye coordination, cause and effect reasoning, fine motor skills through grasping and releasing the ball, and focus and concentration through repetitive play.
This Montessori material is crafted from high-quality, smooth-sanded wood with non-toxic finishes. The drawer features a blue panel for visual contrast, and it includes a yellow wooden ball sized appropriately for infant hands while being too large to pose a choking hazard.
Sit with your baby and slowly demonstrate dropping the ball through the hole. Open the drawer to show the ball, expressing gentle surprise. Hand the ball to your baby and allow them to explore. Initially, they may need help opening the drawer, but with practice, they'll master the complete sequence independently.
The sloped playing surface is intentionally designed to guide the ball toward the hole, making it easier for young children to succeed. This thoughtful design element reduces frustration and encourages repeated practice, which is essential for mastering the concept of object permanence.
Can't find what you're looking for?
Contact Our Experts
Share your experience with this material and help other educators and parents.
Bundle related materials and save. Free curriculum guide included with every set.
