For fans of the Sir Cumference series with Pi on their mind, here is the second installment in this fun look at math and language. This time the math adventure is centered around a potion that changes Sir Cumference into a fire-breathing dragon.
Can Radius change him back? Join Radius on his quest through the castle to solve a riddle that will reveal the cure.
It lies in discovering the magic number that is the same for all circles. Perfect for parent and teachers who are looking to make math fun and accessible for everyone.
對知道圓周率的 Sir Cumference系列粉絲而言，本書是學習有趣數學和語言的第二本書。這次數學冒險圍繞著一種藥水，可將圓周爵士變成一條噴火龍。
半徑先生可以把圓周爵士變回來嗎？加入半徑先生一起探索城堡，解開治療的謎團。
找出在所有圓形中都一樣的神奇數字。本書非常適合希望讓數學學習有趣簡單的家長和老師。
【適讀程度】
Age Range: 8 - 12 years