A knowledge check on substituting into simple formulae for Year 6 maths. Pupils cost sausage rolls with C = 2n, find a taxi fare with F = 3m + 2, complete perimeter and area tables, then work backwards through formulae like T = 30w + 15 to find a joint of beef's weight. Worked solutions included. Matched to the England National Curriculum formulae objective.
Algebra
“Use simple formulae”
The three sections move from substitution to inverse use of the same formulae.
Word problems using formulae such as C = 2n and F = 3m + 2.
Completing perimeter values with P = 6s and areas with A = 4L.
Reverse problems, including finding the weight of a joint that roasts for 75 minutes.
Worked solutions for every question.
Assessment check
Working Backwards separates substitution from real understanding.
Main activity
The three sections give a full lesson's progression on formulae.
Stretch task
Confident pupils can go straight to the reverse problems.
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