Subtracting decimals using the written method Student activity Play

Subtracting negative numbers Whiteboard exercise Play

Subtracting negative numbers Student activity Play

Sum and difference identities for the cosine Whiteboard exercise Play

Sum and difference identities for the cosine Student activity Play

Sum and difference identities for the sine Animation Play

Sum and difference identities for the sine Student activity Play

Sum and difference identities for the tangent Student activity Play

Sum and difference identities for the tangent Animation Play

Sum and difference identities for the tangent Whiteboard exercise Play

Taps and tub – the difference Animation Play

Temperature difference Simulation Play

Temperature difference Whiteboard exercise Play

Temperature difference Student activity Play

The capacity of a cell Animation Play

The capacity of a cell Student activity Play

The capacity of a cell Whiteboard exercise Play

The correct position of the signs Whiteboard exercise Play

The correct result of the multiplication Whiteboard exercise Play

The cost of a 3-day mountain trip Whiteboard exercise Play

The debt is increasing Whiteboard exercise Play

The debt is increasing. The debt is decreasing Student activity Play

The definite integral of the sum or difference of two functions Student activity Play

The definite integral of the sum or difference of two functions Whiteboard exercise Play

The derivative of the sum and difference of functions Whiteboard exercise Play