This story is based on the factual behaviour of polar bears in the Arctic region. The three chapters describe how two cubs, at three months, six months & two years, survive the freezing conditions of the North Pole. Silver level titles (equivalent to the White bridging book band) use sentences with two or three clauses & the length of the texts extends to around 1000 words to help build reading stamina. Real-life problems are also introduced to encourage empathy. PM Plus Storybooks feature a classic story structure with tension, climax & resolution to engage young readers. The books have been written using carefully selected vocabulary to ensure children experience reading success. pm 19-offer