# 수와 연산
01 생일을 맞히는 계산 마술 ··················································································3
02 신기한 카프리카 수와 연산 ···············································································7
03 ‘4’ 네 개로 만드는 자연수 ············································································11
04 손가락 구구단 ································································································15
05 크로스 곱셈법 ································································································19
06 옛 사람들의 곱셈 ···························································································24
07 수학식으로 퍼즐 놀이를?! ··············································································30
08 덧셈만 알면 나는야 곱셈왕 ············································································37
09 예쁜 무늬에 숨겨진 비밀 ···············································································41
10 색으로 배우는 약수와 배수 ············································································46
11 분수 계산기?! ································································································52
# 도형과 측정
12 뫼비우스의 띠 자르기 ····················································································59
13 삼면접시 ·········································································································63
14 한 번만 잘라서 만든 정다각형 ·······································································67
15 하나의 전개도 두 개의 도형 ··········································································74
16 평면에서 입체로, 무브폼 ················································································80
17 원이 그리는 예술, 써클아트 ···········································································86
18 안과 밖이 바뀌는 큐브 ··················································································94
19 무한반복 피라미드 ··························································································98
20 빈틈없이 가득 채우는 재미 ·········································································102
21 두 개의 기둥을 품은 하나의 기둥 ·······························································106
22 새를 품은 에그 퍼즐 ···················································································112
23 일곱 개의 조각이 이루는 도형 ····································································118
24 색종이로 만드는 삼각자 ··············································································122
25 넓이가 늘어나는 마술퍼즐 ···········································································126
26 크기가 다른 두 물통 ···················································································130
27 각도기로 별 그리기 ·····················································································134
28 종이접기로 만드는 곡선 ··············································································140
29 퍼즐로 배우는 직사각형 넓이 ······································································147
30 벌들이 찾은 최적의 구조 ············································································152
31 DIY 경사계 ·································································································157
# 변화와 관계
32 베다 방진으로 만든 무늬 ············································································162
33 A시리즈 종이에 담긴 비밀 ··········································································168
34 바코드와 체크디지트 ····················································································172
35 규칙을 따라가면 예술이 되는 스트링아트 ····················································176
36 돌돌 감으면 풀리는 비밀 ············································································180
37 쉿! 우리만 아는 비밀이야 ···········································································184
38 파스칼 삼각형에 숨겨진 규칙 ······································································188
39 탑을 옮기면 세상이 끝난다! ········································································193
40 도형 속 수의 규칙 ······················································································198
41 끊임없이 되풀이 되는 구조 ·········································································205
42 몬드리안의 그림 속 수학 ············································································211
43 수학으로 배우는 음계 ··················································································217
44 규칙을 알면 항상 이기는 게임 ····································································223
45 식물도 수학을 한다고?! ··············································································229
46 종이를 접어 만드는 프랙탈 ·········································································235