In Stock
Magnetic Tangram for School Maths Lab
Full-Surface Magnetic Adhesion: Engineered with a powerful, flexible magnetic backing that ensures slip-free placement on steel-coated whiteboards, facilitating stable vertical demonstrations during large-group classroom instruction and student-led presentations.
Seven-Piece Geometric Configuration: Comprises precision-cut, high-density EVA foam pieces including five triangles of varying scales, one square, and one parallelogram, all featuring vibrant, non-toxic pigments and shatter-resistant construction for long-term institutional use.
$2.99
Quick Answer: The Magnetic Tangram is a version of the classic Chinese dissection puzzle whose pieces cling to a magnetic whiteboard. Teachers use the magnetic tangram to demonstrate composing shapes, area as fractions of the whole square, congruence and spatial reasoning to the whole class.
The Tangram Pieces and Their Areas
A standard tangram cuts one square into seven pieces: two large right isosceles triangles, one medium triangle, two small triangles, a square and a parallelogram. Every piece can be measured in small triangles. The square, the medium triangle and the parallelogram each equal two small triangles, and each large triangle equals four, so the whole square holds sixteen small triangles. That makes the tangram a compact lesson in area without formulas: the square piece is one eighth of the whole, and a large triangle is one quarter.
On a whiteboard, pieces can be placed, rotated and flipped where the whole class can follow. The teacher can show that the square, medium triangle and parallelogram are different shapes with equal area, or that two small triangles fit exactly over the medium one. Flipping the parallelogram is a memorable moment, because it is the only piece that must be turned over to fill some outlines, which introduces reflection.
Silhouette puzzles then give the class a problem to solve: rebuild a given outline using all seven pieces with no overlaps. Demonstrating one solution on the board and asking groups for another builds persistence and spatial reasoning. The pieces also carry angles of 45°, 90° and 135°, which students can measure and add where pieces meet.
Specifications
| Item | Magnetic tangram for whiteboard demonstration |
| Standard tangram pieces | Five triangles, one square, one parallelogram |
| Angles present | 45°, 90° and 135° |
| Topics | Area as fractions, congruence, transformations, spatial reasoning |
| Size, colours and number of tangram sets supplied | Confirm at enquiry |
Applications
- Composing and decomposing shapes on the whiteboard
- Expressing each piece’s area as a fraction of the whole square
- Showing congruent pieces and equal areas in different shapes
- Demonstrating rotation and reflection by turning and flipping pieces
- Solving silhouette puzzles with the whole class before desk work
Care & Handling
- Keep the pieces of each magnetic tangram together in a labelled envelope or tray; one missing piece makes the puzzle unusable.
- Wipe the pieces with a dry cloth and store them flat so they do not curl.
- Keep them out of direct sunlight and away from heat.
Why Choose LabEquip
A board tangram is usually bought for the teacher, while students solve the same puzzles with desk sets. LabEquip lists it in its Mathematics School Lab Products range with other board materials such as the Magnetic Base Ten Block set; send quantities through the LabEquip contact page.
Frequently Asked Questions
What are the seven pieces of a tangram?
Two large triangles, one medium triangle, two small triangles, one square and one parallelogram. All five triangles are right-angled and isosceles, so every angle in the set measures 45°, 90° or 135°.
How does a tangram teach fractions?
Measure every piece in small triangles. The whole square holds sixteen, a large triangle holds four, and the square, medium triangle and parallelogram hold two each. So a large triangle is one quarter of the whole and the square piece is one eighth.
Why is the parallelogram piece special?
It is the only piece whose mirror image cannot be matched just by turning it, so some outlines need it flipped over. That makes it useful for showing the difference between a rotation and a reflection.
What is the advantage of a board tangram?
The pieces stay in place on a vertical board, so the teacher can build, rotate and flip shapes while the whole class watches. Desk sets are better for individual puzzles, but a board version makes demonstrations and class discussion much easier.
Can the seven pieces form shapes other than a square?
Yes. They can make a rectangle, a triangle, a parallelogram and a trapezium, as well as hundreds of figures such as animals and people. Every figure made from all seven pieces has the same area, which is a strong point to discuss.
Which classes use tangrams?
Primary classes use them for shape names, puzzles and spatial reasoning. Middle-school classes use the same pieces for area, fractions, angles and transformations, so one set serves several year groups.
Last Updated: September 2026
You must be logged in to post a review.
Bestsellers
Reviews
There are no reviews yet.