Algebra helps us to read the whole equation by assigning letters to the unknown!

When you’re trying to solve word questions, (for example: During the weekends Sam played 4 more games than Alex did, and together they played 12 games. How many games did Alex play?), you can turn it into algebra then use algebra to solve it. Algebra helps you to read the whole equation first, assign letters for the values and work out formulas.

Sam has 2 books less than Alex. We can write the equation like this:
S=number of books Sam has
A=number of books Alex has
The equation could either be like this- s-2=a, s=a-2 or s=2-a. The answer is s=a-2 because Sam has 2 books less than Alex.

Learning Intention: We are learning to develop our understanding of algebra.
Success Criteria: I know I can do this when I record an explanation of algebra using screencastify.