System of equations Animation Play

System of equations describing big and small ice-creams problem Whiteboard exercise Play

System of equations describing drinks and ice-creams problem Whiteboard exercise Play

System of inequalities in two variables Whiteboard exercise Play

System of inequalities in two variables Student activity Play

System of linear equations Student activity Play

System of linear equations and their solutions Student activity Play

System of linear inequalities in one variable Student activity Play

System of linear inequalities with one variable Whiteboard exercise Play

Systems of inequalities with two variables Student activity Play

Systems of inequalities with two variables Whiteboard exercise Play

Systems of more than two linear equations Animation Play

Systems of more than two linear equations Student activity Play

The antropologists Animation Play

The bicycle factory Animation Play

The bird diversity problem Student activity Play

The dark phase is independent of light Student activity Play

The graph of a function Student activity Play

The height and fluency of speech Animation Play

The letters in algebraic expressions, formulas, equations and functions Student activity Play

The letters in algebraic expressions, formulas, equations and functions Whiteboard exercise Play

The mode in a grouped variable Whiteboard exercise Play

The mode in a grouped variable Student activity Play

The pancreas – the gland independent of the pituitary Student activity Play

The resistance of a light bulb filament Simulation Play