Pressure Cylinders — Spring-Loaded Pairs for Weight Discrimination
A set of six pairs of wooden cylinders with spring-loaded plungers, graduated by the force needed to depress them. Presented in a wooden box, children press each cylinder and match pairs by the resistance felt in their fingertips. This sensorial material isolates the baric sense — the ability to discriminate differences in pressure and weight through touch.
“The senses, being explorers of the world, open the way to knowledge.”— Maria MontessoriThe Discovery of the Child
The Pressure Cylinders address a sense rarely trained in conventional education: the perception of resistance and force through touch. Montessori understood that the hand is the instrument of the mind — and that training subtle hand sensitivities directly develops cognitive capabilities. This material also prepares writing: controlling pencil pressure requires exactly this kind of calibrated finger sensitivity.
Step by Step to Mastery
Introduction
Take one cylinder from Box A. Press the plunger with your thumb and say 'Feel how it pushes back.' Invite the child to try.
Comparing Two
Take a cylinder from Box B. 'Is this one the same or different?' Press one, then the other, using the same thumb.
Matching Pairs
Systematically compare each cylinder from Box A with those in Box B until the matching pair is found.
Grading Extension
Arrange one box from lightest resistance to strongest. Verify with the matched set.
Introduction
Take one cylinder from Box A. Press the plunger with your thumb and say 'Feel how it pushes back.' Invite the child to try.
Comparing Two
Take a cylinder from Box B. 'Is this one the same or different?' Press one, then the other, using the same thumb.
Matching Pairs
Systematically compare each cylinder from Box A with those in Box B until the matching pair is found.
Grading Extension
Arrange one box from lightest resistance to strongest. Verify with the matched set.
Every Child Is a Little Creator
Heritage
Since 1929
Trusted by
Schools Worldwide
Handcrafted
in Europe
AMI
Endorsed
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