Subtraction Equations Box: Self-Correcting Facts Practice

Price

€47.58

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Shipping & Delivery

In Stock · 2-3 days

Quantity

Age Range3-6 Years

MaterialSolid wood with dovetail joints

DimensionsApprox. 20 × 8 × 10 cm

CertificationAMI Approved

About

Hands-on to minds-on, this Subtraction Equations and Differences Box offers children a systematic approach to learning subtraction facts through self-correcting material. The carefully organized wooden box with sliding green lid contains equation tiles and corresponding answer tiles, which means children can match subtraction problems with their differences through hands-on manipulation and visual discrimination.

“Free the child's potential, and you will transform him into the world.”

- Maria MontessoriTo Educate the Human Potential

AMI ApprovedOfficial Nienhuis

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2-Year WarrantyQuality guaranteed

Everything You Need

Wooden storage boxwith sliding green lid

Subtraction equation tilesapprox. 25 problem tiles

Answer tilesapprox. 25 difference tiles

The Montessori Method

In Montessori education, the passage from concrete to abstract is fundamental, and this Subtraction Equations Box serves as a bridge between sensorial exploration and mathematical abstraction. Following the principle of isolation of difficulty, each equation tile presents one specific subtraction fact, allowing the child to focus without overwhelm. The material's self-correcting nature embodies Montessori's belief in the child as an active learner who constructs knowledge through hands-on manipulation. The green color, traditionally associated with subtraction in Montessori mathematics, provides visual consistency across materials. This work prepares the mathematical mind through repetition and pattern recognition, while the sliding lid and organized compartments satisfy the child's need for order during the sensitive period for mathematics.

✹Develops understanding of subtraction as 'taking away' through concrete manipulation✹Builds visual discrimination skills by matching equation tiles with difference tiles✹Internalizes subtraction facts through repetitive, self-directed practice✹Strengthens fine motor control and pincer grip through tile manipulation✹Establishes pattern recognition for mathematical relationships

Subtraction Equations Box: Self-Correcting Facts Practice - Child learning

AMI Approved

Activity Guide

Step by Step to Mastery

5 steps to mastery

Use consistent mathematical language; avoid saying 'take away'

Allow the child time to work through the problem mentally or with fingers

Create organized rows to build visual patterns

Work systematically, perhaps starting with minuends of the same number

Self-correction builds confidence and independence

Browse steps

Use consistent mathematical language; avoid saying 'take away'

Allow the child time to work through the problem mentally or with fingers

Create organized rows to build visual patterns

Work systematically, perhaps starting with minuends of the same number

Self-correction builds confidence and independence

Developmental Benefits

Why Educators Choose This

Mathematical Memory

Repeated matching of equations with differences builds automatic recall of subtraction facts essential for later abstract work.

Visual Discrimination

Children refine their ability to distinguish between similar numerical symbols while developing concentration through focused matching work.

Independence & Self-Correction

The material's design allows children to work autonomously and discover errors themselves, building confidence in mathematical exploration.

Present equations with the same minuend together (all 9- equations) to highlight patterns

Observe which facts the child matches quickly versus slowly to inform future lessons

Connect this work to the Addition Strip Board by showing inverse relationships

Pro Tip

“Introduce this material only after the child has worked extensively with the Negative Snake Game and understands subtraction conceptually”

The Gold Standard in Montessori

Every Child Is a Little Creator

Heritage

Since 1929

Brands used by

schools worldwide

European brands

AMI

Endorsed

Have Questions?

Frequently Asked Questions

Everything you need to know about this material.

Contact Our Experts

What subtraction facts are included in this box?

The box typically contains subtraction equations from 1-1 through 18-9, covering all basic subtraction facts where the minuend is 18 or less. Each equation tile has a corresponding difference tile, providing comprehensive coverage of fundamental subtraction combinations.

How does the self-correcting feature work?

Children match equation tiles with their corresponding answer tiles through visual and tactile discrimination. The materials are designed so that each equation has only one correct answer, allowing children to verify their work independently without adult intervention.

Why is this classified as Sensorial rather than Mathematics?

This material bridges sensorial and mathematical work by emphasizing visual discrimination, pattern recognition, and hands-on manipulation. Children develop mathematical understanding through sensorial exploration, matching tiles by sight and touch before fully comprehending the abstract mathematical concepts.

What's the purpose of the sliding green lid?

The sliding green lid serves multiple purposes: it keeps materials organized and dust-free, provides a defined workspace when partially opened, and allows children to reveal equations gradually for focused work. The green color also maintains consistency with Montessori mathematics materials color-coding.

How do children progress with this material?

Children typically begin by matching a few familiar equations, gradually working through more challenging problems. They may start with simple differences like 2-1=1, progress to facts within 10, then advance to larger numbers. The material supports memorization through repetition and pattern recognition.

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