Firewords are Fireworks which display words in the night sky. You can buy Firewords to make any word but the cost depends on the letters in the word.
A costs 1p, B costs 2p etc.
Which Firewords will cost exactly £1 ?
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Teacher, do your students have access to computers such as tablets, iPads or Laptops? This page was really designed for projection on a whiteboard but if you really want the students to have access to it here is a concise URL for a version of this page without the comments:
However it would be better to assign one of the student interactive activities below.
Here is the URL which will take them to a related student activity.
Now the prices of the letters are defined by prime numbers (A = 2, B = 3, C = 5 etc) and the price of a word is the product of the letters it contains.
For example the word BAD costs 3 × 2 × 7 = 42p.
What mathematical words might cost:
Fireworks sound effect is by firstname.lastname@example.org