What is a Rule for a Number Pyramid?

What is Evaluating a Formula?

What is a Simple Variable in a Formula?

What is a Variable as a Label for a Quantity?

What is an Equation with an Empty Box?

What is Finding the Missing Part of an Equation?

What is the Idea of 'Balance' in Equations?

What is a Simple Rule for a Number Game?

What is a Pattern in a Hundreds Chart?

What is a Simple Unknown in a Problem?

What is a Missing Operation in a Number Sentence?

What is an Equation to Model a Situation?

What is a Variable Representing 'any number'?

What is a Simple Generalisation in Algebra?

What is a Relationship Between the Position and Value of a Term?

What is a Pattern of Numbers with a Skip?

What is a Number Pattern with a Jump?

What is an Equation as a Statement of Equality?

What is the Inverse of an Operation in an Equation?

What is Using a Formula to Solve a Problem?

What is the Value of a Formula?

What is a Formula with Two Variables (simple)?

What is a Formula with One Variable?

What is a Rule for a Simple Proportional Relationship?

What is a Pattern of Points on a Coordinate Grid?

What is an Input-Output Table for a Linear Relationship?

What is a Variable in a Simple Graph?

What is the Meaning of 'find the value of'?

What is the Meaning of 'solve' in Algebra?

What is Checking the Solution of an Equation?

What is a Value that Satisfies an Equation?

What is a Value that Makes an Equation True?

What is a Missing Term in an Expression?

What is a Number Sentence with a Blank Space?

What is a Simple Algebraic Model?

What is a Block Model for Equations?

What is a Pictorial Representation of an Equation?

What is a Simple Pattern with Alternating Operations?

What is a Sequence of Numbers that Halve?

What is a Sequence of Numbers that Double?

What is a Sequence of Multiples of a Number?

What is a Pattern that Repeats in a Cycle?

What is a Rule for a Decreasing Number of Objects?

What is a Rule for a Growing Number of Objects?

What is a Pattern Discovered from a Set of Numbers?

What is a Story Problem with an Unknown?

What is an Equation Representing a Real-Life Situation?

What is Finding the Next Term in a Sequence?

What is Solving for the Unknown in a Simple Equation?

What is a Numerical Expression with a Variable?