Author Archives: Leila Farley

Carbon and its Forms, Age 9+

Are you ready to embark on a journey to learn about one of the most important elements on planet earth? That’s right; we’re talking about carbon! Carbon is a fascinating element found in many forms and has numerous benefits for our environment, health, and economy.

Number Line, Age 6+

Number Line, Age 6+

How important are number lines? Montessorians know too well the story of Ancient Egyptians who tied knots at equidistance on a rope to measure crops.  This is a form of a number line!   Every day we use number lines when measuring ingredients, length, or driving along a road.  Not only are number lines everywhere, but they […]

Study of Circles, Age 9+

The Montessori geometry curriculum formally introduces parts of a circle in the lower elementary years (ages 6-9). It is further explored in the upper elementary years, where learners measure the circumference and area of a circle using pi. After receiving formal presentations, your learners can practice and maintain their skills using our new set of […]

Fractions with Degrees Activity Set, Ages 9-12

Help your learners create new connections between fractional parts and angle measurements!  In the early elementary years, Montessori learners explore various names to describe angles.

Estimation and Rounding, Ages 6-12

Estimation and Rounding

In everyday life, we use estimation and rounding, two skills that help us mentally assess numbers. They can be used to simplify numbers and understand them better, or they can be used to do mental math faster.

Decanomial Box Task Cards, Age 6+

Decanomial Box Task Cards, Age 6+

The Decanomial Box Task Cards have been designed to support learners aged 6 and up beginning to work —implicitly—with multiplication. Ultimately, the Montessori Decanomial Box is used to provide learners with a physical model of the multiplication table.

Wooden Equivalent Figures, 9-12

Wooden Equivalent Figures

The Wooden Equivalent Figure Material Complete Set is an affordable version of the unique Montessori math material, Equivalent Figures Material. Equivalent Figures Material allows learners to explore the concept of equivalences by deconstructing shapes to create new shapes that can be used for measuring areas.

The Study of Percentages, Ages 8+

The Study of Percentages

The basics of percentages are usually introduced around ages 8-9, in the late Lower Elementary years. First, children must have extensive experience with fractions and what it means to have parts of a whole. Percentages are comparable to fractions, with the difference that percentage represents the value of a quantity divided into 100 parts

Puzzle Maps Extension, Ages 5-6+

Puzzle Maps Extension, Ages 5-6+

Puzzles Maps are introduced at the primary level around age 5. They consist of eight maps representing the seven continents and the world. The large colorful puzzles contain movable pieces with knobs and can be accompanied by large outline charts.  These puzzle maps represent the political boundaries of the world.  Before learning about political boundaries, children will have […]