Family play guides · gugiboard team · Published October 2026

Pink Tower, Brown Stair and cylinders: noticing size through play

Big and small are easier to discuss when two objects sit beside each other. The Sensorial world in gugiboard includes digital versions inspired by familiar Montessori size materials: the Pink Tower, Brown Stair and knobbed cylinders. Their purpose here is visible comparison, not a speed challenge.

The materials you will find

The Pink Tower has ten cubes from largest to smallest. Brown Stair presents graduated wooden prisms. Knobbed cylinders differ in size and have individual matching places.

Sharing the activity

Begin the tower with its largest cube. Select it and the first place, or drag it there. Subsequent cubes are accepted in descending size order; a misplaced cube remains available to try again.

Brown Stair uses an ordered series too. Cylinders instead fit their matching places. If you remove a supporting tower cube, the cubes above return as well, so the construction can be rebuilt without floating pieces.

What to notice without a test

Look at the edge of one cube beside the next. Use “larger” or “smaller” when the contrast is visible. You do not need to name all ten sizes or finish a tower.

A matching place provides feedback through fit rather than a prize or a spoken judgment. If a piece does not fit, pause, compare the shapes and let your child decide whether to try another place.

Continue away from the screen

Stack a few large, age-appropriate blocks on a stable surface. The real weight, balance and possibility of falling are experiences a digital tower cannot reproduce. Supervise and keep the stack low.

Compare large everyday containers or books without requiring a perfect series. A small pair may be more interesting than ten items. Follow the child’s curiosity and put the device aside when real objects become available.

Two languages, a calm pace

Big / grande, small / pequeño, cube / cubo and cylinder / cilindro are useful starting words. Say them while pointing to a visible difference.

gugiboard’s Montessori area is Montessori-inspired, not an accredited program or a replacement for physical Montessori materials. Its five worlds and 28 activities have no points, rewards, countdowns, automatic advancement, background music or idle characters. Home, mute, undo and redo keep choices with the family. Share brief sessions, leave time for movement, books and real play, and stop when interest fades.

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WHO: Guidelines on physical activity, sedentary behaviour and sleep for children under 5 years of age

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