Multiplication & Place Value Investigation Lesson: "Backwards Bob"
Differentiated investigation lesson aimed KS3. Particularly suitable for a mixed-ability class.
In this lesson, less-confident students are given lots of opportunity to practice 2-digit multiplication, whilst stronger students are asked to generalise a rule for when “reverse-digit” multiplication gives the same product as the original multiplciation.
Can easily be extended into two lessons, by extending the investigation to 3-digit numbers and beyond.