Constructing a cumulative frequency table Whiteboard exercise Play

Constructing a cumulative frequency table Student activity Play

Constructing the graph of the sine function Animation Play

Constructing the graph of the tangent function Animation Play

Cumulative frequency curve Whiteboard presentation Play

Cumulative frequency curve Class activity Play

Cumulative frequency table Whiteboard exercise Play

Cumulative frequency table Student activity Play

d- and f-block elements Animation Play

Defining a function by a table Student activity Play

Defining a function by a table Animation Play

Defining a function by a table – activity Whiteboard exercise Play

Describing class intervals Student activity Play

Describing class intervals – alto singers Whiteboard exercise Play

Description of oscillations Student activity Play

Descriptions of ski-jumps Whiteboard exercise Play

Determination of average atomic mass of boron Animation Play

Determining the composition of atomic nuclei Student activity Play

Determining the electron configuration on the basis of the periodic table Student activity Play

Determining the electron configuration on the basis of the periodic table Whiteboard exercise Play

Determining the formula of a compound knowing the valence of its elements Student activity Play

Determining the formula of potassium carbonate Animation Play

Discovery of radioactivity Animation Play

Distance – a more difficult problem Student activity Play

Distance – a more difficult problem Whiteboard exercise Play