Register - Login - Forgotten Password

Finding Rules for Number Sequences

If a sequence continued for a thousand terms, could its thousandth term be identified without writing out the other 999? Open Full Article...

Straight-Line Graphs and Their Equations

Why can points that look almost identical belong to different graphs? Open Full Article...

Expanding and Factorising Algebraic Expressions

How can 3(x + 4) and 3x + 12 look different yet represent the same value? Open Full Article...

Solving Equations by Balancing Both Sides

If two sides have the same value, what does the equals sign actually tell us? Open Full Article...

How Variables Represent Unknown Values in Algebra

A number is hidden in the statement □ + 3 = 8, yet the relationship is already clear. Open Full Article...