Stratified sampling Student activity Play

System of linear equations and their solutions Student activity Play

The defects of lenses Whiteboard exercise Play

The defects of lenses Student activity Play

The quality of a survey Student activity Play

The quality of coding Student activity Play

The quality of coding Simulation Play

The quality of coding Whiteboard exercise Play

The quality of digital sound Student activity Play

The quality of digital sound Simulation Play

The quality of digital sound Whiteboard exercise Play

The quality of survey Whiteboard exercise Play

True and false conditions Whiteboard exercise Play

True or false? Animation Play

True tissues Student activity Play

True tissues Slideshow Play

True tissues – cross section Simulation Play

Types of reasoning Animation Play

Types of reasoning I Student activity Play

Types of reasoning II Student activity Play

When is a theorem true? Whiteboard exercise Play

When is a theorem true? The proof Student activity Play