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#### Ümbermõõdu, pindala, pinnalaotuse ja ruumala arvutamine

Tasapinnaliste kujundite ümbermõõdu ja pindala ning ruumiliste kujundite pinnalaotuse ja ruumala valemite tutvustus.

#### Õpime kaaluma!

Huvitav loogikaülesanne - leia väliselt ühesuguste kaalupommide hulgast üks, mis teistest kaalu poolest erineb.

#### 3D pusle

See huvitav ja värviline mäng õpetab ruumilist mõtlemist. Lahendusi saad kontrollida isomeetrilises vaates.

#### Robotid

Ruumiliste kujutiste lõbus tundmaõppimine sõbralike robotite abil.

#### Solids of revolution

Rotating a geometric shape around a line within its geometric plane as an axis results in a solid of revolution.

#### Notable products

A spectacular demonstration of algebraic expressions.

#### Three-dimensional Cartesian coordinate system

3-dimensional Cartesian coordinate system with illustrations and exercises that develop spatial perception.

#### Chess games

Chess games can help to develop logic skills.

#### Geometric transformations – rotation

This animation demonstrates geometric rotation, a type of geometric transformation both in plane and space.

#### Geometric transformations – translation

This animation demonstrates geometric translation in both plane and space.

#### Geometric transformations – reflection

This animation demonstrates geometric reflection, a type of geometric transformation both in plane and space.

#### Optical illusion

The information gathered by the eye is misinterpreted by the brain.

#### Kepler´s laws of planetary motion

The three important laws describing planetary motion were formulated by Johannes Kepler.

#### What is the time?

A game to practise the use of analogue and digital clocks.

#### Cube (exercises)

Edges, diagonals and faces of a cube can be identified by its vertices.

#### Ames room

An Ames room is a distorted room that is used to create an optical illusion.

#### Dividing Space into Regions by 3 Planes

Division of space by three intersecting planes in several different arrangements.

#### Volume of a tetrahedron

To calculate the volume of a tetrahedron we start by calculating the volume of a prism.

#### The reflection and refraction of light

A ray of light is reflected or refracted at the boundary of two mediums with different refractive indices.

#### Dice

Regular dice can be used for solving statistical and probability exercises.