Corresponding segments and angles – reflection Animation Play

Corresponding segments and angles – rotation Animation Play

Creating symmetrical triangles Whiteboard exercise Play

Crossing lines cut by two parallel lines Animation Play

Decimal number line Student activity Play

Decimal number line Simulation Play

Decimal number line Whiteboard exercise Play

Defining inequalities in a coordinate system Student activity Play

Defining inequalities in a coordinate system Simulation Play

Defining inequality in a coordinate system Simulation Play

Different angles Student activity Play

Different vector equations of the same line Animation Play

Direct proportionality models Student activity Play

Discriminant of the equation ax 2 + bx + c = 0 Student activity Play

Display devices Whiteboard exercise Play

Display devices Student activity Play

Display devices Simulation Play

Distance from a point to a line Simulation Play

Distance from a point to a line Student activity Play

Distance on the map Animation Play

Divide a plane into half-planes Student activity Play

Dividing a line segment Simulation Play

Dividing a line segment Student activity Play

Dividing a plane into half-planes Whiteboard exercise Play

Dividing a plane into half-planes Whiteboard exercise Play