See how Singapore maths uses problem solving, hands-on materials and group work to engage all learners in this real-time maths lesson taught by our textbooks series consultant, Dr Yeap Ban Har. Filmed at Our Lady of Pity RC Primary School in Wirral, England, this Year 4 model lesson on measuring area is taken from Maths — No Problem! Primary maths series textbook 4B, chapter 11 - Area of figures, page 143. At the time of filming, the children in the video had been using the Maths — No Problem! textbooks for two and a half years.