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Fraction Bar Magnetic for School Maths Lab
Integrated High-Strength Magnetic Backing: Each bar is engineered with a full-surface magnetic layer, ensuring non-slip adhesion to vertical steel surfaces for seamless classroom demonstrations and collaborative group modeling of linear fractional relationships.
UV-Stabilized Multi-Color Coding: Manufactured with a fade-resistant scheme across nine distinct denominations (1 to 1/12), these strips utilize a high-density polymer finish to maintain long-term legibility in high-traffic laboratory settings.
$4.74
Quick Answer: Fraction Bar Magnetic is a set of fraction bars with magnetic backing that hold on a magnetic board, so a teacher can build and rearrange fraction models in front of the whole class. Magnetic fraction bars are used for demonstrations of comparison, number-line placement and subtraction.
Fractions on the Board, Visible to Everyone
Handing out desk sets suits practice, but the teaching moment often needs one large model everyone can see. With magnetic bars, a teacher builds the whole and a few rows of parts on the board, writes the fraction beside each piece and moves pieces while the class watches. Pupils can be called up to place a piece and explain why it goes where it does, which turns the board into a shared workspace.
The board is also the natural place to connect fractions with the number line. Draw a line from 0 to 1 the same length as the whole bar, then place pieces end to end along it. The right-hand end of each run marks the position of a fraction: two thirds sits where two third-pieces finish. This helps pupils treat a fraction as a number with a place on the line, not only as part of a shape.
Subtraction is easier to show on a board than on a desk. For 3/4 minus 1/4, three quarter pieces are placed and one is removed. For 1/2 minus 1/3, a half and a third are lined up one above the other, and the class searches the other rows for the piece that fills the gap. It turns out to be one sixth, which leads naturally to common denominators.
Specifications
| Item | Fraction bars with magnetic backing |
| Surface needed | Magnetic (steel-backed) board |
| Topics | Comparison, number line, equivalence, subtraction |
| Typical use | Teacher demonstration and pupil board work |
| Denominators, bar length and colours | Confirm at enquiry |
Applications
- Building a class fraction wall on the board
- Placing fractions on a number line from 0 to 1
- Subtracting fractions, including ones with different denominators
- Ordering fractions in a whole-class activity
Care & Handling
- Wipe the board and the backs of the magnetic fraction bars now and then, since grit trapped under a piece scratches the board.
- Slide pieces off the board rather than prising them at a corner, which can peel the magnetic backing.
- Store the pieces flat in rows so none are lost or bent.
Why Choose LabEquip
Teachers who present fractions to the whole class, and schools equipping a maths lab board, are the usual buyers. LabEquip offers these in the Mathematics School Lab Products range, along with the desk-sized Fraction Bar set for pupil practice; tell us how many classrooms you are equipping on the contact page.
Frequently Asked Questions
What kind of board do magnetic fraction bars need?
They need a surface that a magnet sticks to, such as a steel-backed whiteboard or a magnetic chalkboard. Not every classroom board is magnetic, so test yours with a fridge magnet first.
How can the bars place fractions on a number line?
Draw a line from 0 to 1 matching the length of the whole bar, then lay pieces end to end along it. The point where the pieces finish marks the fraction, so three quarters sits where three quarter pieces end.
How are magnetic bars used in whole-class teaching?
The teacher builds a model on the board, writes the fraction next to each piece and invites pupils up to move pieces and explain their reasoning. The class follows one shared model instead of many separate ones.
How is subtracting fractions with different denominators shown?
Line up the larger fraction and the smaller one beneath it, then find a piece from another row that exactly fills the gap. For one half minus one third, the gap is filled by one sixth, which is the answer.
How do magnetic bars differ from desk fraction bars?
They show the same fractions, but magnetic bars are designed for the board and whole-class demonstration, while desk bars are for pupils to handle in pairs or groups.
Which fractions and colours are in the set?
The title does not list the denominators, so confirm them when you enquire. For number-line work it helps to have halves, thirds, quarters, sixths and eighths.
Last Updated: September 2026
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