Learning Lab

Watch the indices and logarithms videos and/or download the worksheets to develop your maths skills in this area.

• ILS1.1 Indices (PDF)

  When a number such as 125 is written in the form 5³ we say that it is written as an exponential, or in index notation.
  Play the Indices video.

• ILS1.2 Fractional indices (PDF)

  The index laws apply to fractional indices as well as positive and negative integer indices.

• ILS2.2 Exponential equations (PDF)

  If we can write b as a number with a base a and an index, then we can equate the indices to find x.

• ILS2.1 Logarithms (PDF)

  The logarithm of a number is the power to which the base must be raised to give the number.
  Play the Logarithms video.

• Surds video

  A surd is an irrational number resulting from a radical expression that cannot be evaluated directly.

• ILS3.1 Simplifying surds (PDF)

  If a surd has a square factor ie 4, 9, 16, 25, 36..., then it can be simplified.

• ILS3.2 Operations on surds (PDF)

  The usual algebraic rules for expansion of brackets apply to brackets containing surds.