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Features

Three-part cards for all 25 shapes of the geometric cabinet
A control card, a picture card and a name card for every shape
One family a page: curved figures, triangles, quadrilaterals and polygons
Triangles named by their sides and their angles
Big, clear shapes and lower-case names, as on Montessori cards
Dashed lines to cut along, and every card the same width
Every page in color and in black and white

Skills Covered

Name the circle, ellipse, oval, curved triangle and quatrefoil
Name triangles by their sides: equilateral, isosceles, scalene
Name triangles by their angles: acute, right, obtuse

Name the square, rectangle, rhombus, parallelogram, trapezoid, right trapezoid and kite
Name the polygons from pentagon to decagon
Match a shape to its name, and check the match against a control card

How to Use This Pack

Ten pages of cards, one family of the geometric cabinet a page: the circle, ellipse and oval; the curved triangle and quatrefoil; the acute, right and obtuse triangles; the square and rectangle, the rhombus and parallelogram, and the trapezoid, right trapezoid and kite; and the polygons from pentagon to decagon. On each page the control cards are across the top, the picture cards under them and the name cards at the bottom. Cut along the dashed lines. The control card keeps the picture and the name together; the picture card and the name card are separate.

In the Classroom

Use the cards with the three-part card lesson after the child has handled the insets from the geometric cabinet. Lay the control cards in a column. The child matches each picture card to the control card with the same shape, then reads or sounds out each name card and lays it under its picture. To check, the child compares the pair with the control card above it. Later, the child can work without the control cards and use them only to check, or match the cards to the real insets. A child who is not yet reading can match pictures only while you say the names.

At Home

Print one page, cut the cards apart and play a matching game: lay the control cards face up, then find the picture card that matches each one. Hunt for the shapes around the house, an oval mirror, a rectangle door, a hexagon tile, and say their names.

Tips for Success

Print on card stock, or laminate the cards, so they last
Print the color pages for the classroom and the black and white pages for children to color
Start with only the circle, square and equilateral triangle, then add a family at a time
The trapezoid on these cards has exactly one pair of parallel sides
Keep each family in its own envelope, labelled with the family name

Common Core Standards Alignment

This pack supports the following Common Core State Standards for Mathematics:

K.G.A.1 Use shape names for everyday objects, and tell where things are with position words like over, under, next to and behind.
K.G.A.2 Name shapes correctly even when they are turned, tilted, bigger or smaller.
K.G.A.3 Tell whether a shape is flat (two-dimensional) or solid (three-dimensional).
K.G.B.4 Compare flat and solid shapes of any size or position, using everyday words for their sides, corners and other features.
1.G.A.1 Separate the features that define a shape (three sides) from ones that do not (color, size, turn), and build or draw shapes with them.
2.G.A.1 Draw and spot shapes with given features, like a number of angles or faces, and name triangles, quadrilaterals, pentagons, hexagons and cubes.

Montessori Geometry Three-Part Cards

Pre-K – 2nd Grade

Montessori three-part cards for the 25 shapes of the geometric cabinet, from the circle to the decagon, each with a control card, a picture card and a name card. Children cut the cards apart, match each picture and then each name to its control card, and check their work against it.

Download PDF

What’s Included

10 pages of cards in color and in black and white (20 pages)
Curved figures: circle, ellipse, oval, curved triangle and quatrefoil
Triangles: equilateral, acute, right and obtuse, isosceles and scalene
Quadrilaterals: square, rectangle, rhombus, parallelogram, trapezoid, right trapezoid and kite
Polygons: pentagon, hexagon, heptagon, octagon, nonagon and decagon

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