The basic properties of the oxides of alkali metals Student activity Play

The basic properties of the oxides of alkali metals Whiteboard exercise Play

The cell – the basic unit of life Student activity Play

The cell – the basic unit of life Slideshow Play

The cell – the basic unit of life Slideshow Play

The complex structure of matter Animation Play

The correct perpendicular lines Whiteboard exercise Play

The curvature of a path by a constant force Student activity Play

The dimensions of the paper sizes Whiteboard exercise Play

The Doppler effect and the formation of a shock wave Student activity Play

The Doppler effect and the formation of a shock wave Simulation Play

The enlargement of the tags Animation Play

The flower for Yoko Animation Play

The focal length and the shape of a lens Animation Play

The focal point of a concave mirror Student activity Play

The focal point of a concave mirror Animation Play

The graph of the tangent Student activity Play

The hidden patterns Animation Play

The image of the black shape Whiteboard exercise Play

The image of the blue shape Whiteboard exercise Play

The image of the red shape Whiteboard exercise Play

The image of the yellow shape Whiteboard exercise Play

The inner structure of the atom Student activity Play

The keyhole Whiteboard exercise Play

The line that was used in the symmetry Whiteboard exercise Play