These first two years of Key Stage 2 will introduce new topics to your children aged 7 to 9 years old. Use the science worksheets to help feed your children's curiosity, support their comprehension skills using DK's poetry resources and use our maths packs to help them learn multiplication and percentages. These skills are key to their development during Year 3 and Year 4. Also check out DK'sKS2 booklistandour workbooks.