HAPPY PI DAY TO YOU! (Hardcover) (Hết hàng)
Author: Bonnie Worth
Thể loại: Children books (ISBN: 9780525579939 | Giá: 153,000 đ)
Join the Cat in the Hat as he explains how to measure circles and calculate pi in this perfect choice for Pi Day celebrations and nurturing a love of math and numbers!The Cat in the Hat makes calculating pi—one of the most fascinating numbers in mathematics—as easy as pie! Using a piece of string and two sticks, the Cat first shows beginning readers how to draw a perfect circle. Then, using a can and a piece of ribbon, he shows how to measure a circle's circumference and ...