Generalised algebraic statements
I can use relationships that have been generalised using algebraic statements.
Generalised algebraic statements
I can use relationships that have been generalised using algebraic statements.
These resources will be removed by end of Summer Term 2025.
Lesson details
Key learning points
- Relationships in context can be expressed using letters to represent the unknown values.
- Formulae in context can be expressed using letters to represent the unknown values.
- Number patterns can be expressed using letters to represent the unknown values.
Keywords
Equation - An equation is used to show that one number or calculation is equal to another.
Expression - Expressions contain one or more terms, where each term is separated by an operator.
Formula - A formula is a rule linking sets of physical variables in context. The plural of formula is formulae.
Common misconception
Pupils may thing that letters represent an item e.g a week equals 7 days so w=7d
Get pupils to identify what value the letter represents e.g the number of days then say a number sentence that describes the relationship.
Licence
This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).
Lesson video
Loading...
Starter quiz
6 Questions
$$7a-4$$ -
a number multiplied by 7 then minus 4
$$7(a-4)$$ -
a number minus 4 then multiplied by 7
$$a+7-4$$ -
a number add 7 then minus 4
$$a(7-4)$$ -
7 minus 4 then multiplied by a number
$$4-7a$$ -
a number multiplied by 7 then subtracted from 4
Exit quiz
6 Questions
a -
number of games played
b -
number of items of kit bought
c -
cost for a year
3a -
cost of match fees
2b -
cost of kit