Sum of trigonometric functions – investigations Animation Play

Sum of two adjacent angles of a parallelogram Animation Play

Sum S Animation Play

Sums of powers of 2 Whiteboard exercise Play

Sums of powers of 2 Student activity Play

Sums of square roots of integers Student activity Play

Sums of square roots of integers Whiteboard exercise Play

Taking out a single term from algebraic equations Student activity Play

Taking out a single term from algebraic equations Whiteboard exercise Play

Taps and tub – the sum Animation Play

The area of the whole rectangle Animation Play

The area of the whole rectangle – product of two sums Whiteboard exercise Play

The arithmetic mean for continuous data Whiteboard exercise Play

The arithmetic mean for continuous data Student activity Play

The content of a problem as an algebraic expression Student activity Play

The content of a problem as an algebraic expression Animation Play

The content of a sentence as an algebraic expression Animation Play

The content of a sentence as an algebraic expression Student activity Play

The content of a sentence as an algebraic expression Animation Play

The correct sums Whiteboard exercise 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 a sum of functions Whiteboard exercise Play

The derivative of a sum of functions Student activity Play

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