Having used the DfES "Problem Solving" pack in a variety of school and centre-based applications, the author taught some of the lessons to classes of children and also observed lessons from the pack being taught to classes from Y1 to Y6. The lessons are part of a series of materials from the Primary National Strategy designed to help all staff involved in the teaching of mathematics to: (1) identify problems of a particular type and the strategies that children can use to solve them; (2) construct teaching sequences for teaching problem solving; (3) incorporate problem solving within the mathematics curriculum; and (4) develop children's reasoning and explanation skills. This article describes some pupils' reactions to the DfES problem-solving materials. It also reports the enthusiasm of teachers at having a resource that provides structured support for the learning and teaching of problem solving. The single major complaint has been that only two lessons per year group have been provided. (Contains 6 figures.)