Acknowledgments |
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xiii | |
Preliminaries |
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1 | (4) |
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1 | (1) |
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A Few Words about This Book |
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2 | (1) |
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3 | (1) |
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3 | (2) |
Part 1: Session Plans |
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5 | (226) |
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7 | (2) |
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7 | (2) |
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Session 1 Checkerboard Problems |
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9 | (10) |
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9 | (1) |
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10 | (1) |
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1.3 Discussion of the Day: Checkerboard Problems |
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10 | (4) |
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14 | (1) |
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1.5 A Few Words about Problem Sets |
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15 | (1) |
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1.6 Take-Home Problem Set |
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15 | (2) |
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1.7 Additional "Checkerboard" Problems |
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17 | (2) |
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Session 2 Review: Math Logic and Other Problem-Solving |
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19 | (1) |
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19 | (1) |
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2.2 Discussion of the Day: Problem-Solving Strategies |
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20 | (3) |
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2.3 Take-Home Problem Set |
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23 | (2) |
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25 | (8) |
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3.1 Warm-up Discussion. Are Proofs Really Necessary? |
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25 | (3) |
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3.2 Discussion of the Day: Invariants |
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28 | (4) |
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3.3 Take-Home Problem Set |
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32 | (1) |
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Session 4 Proof by Contradiction |
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33 | (6) |
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33 | (1) |
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4.2 Discussion of the Day: Proof by Contradiction |
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33 | (4) |
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4.3 Take-Home Problem Set |
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37 | (2) |
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Session 5 Decimal Number System and Problems on Digits |
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39 | (8) |
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5.1 Warm-up Discussion. Egyptian Number System |
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39 | (2) |
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5.2 Discussion of the Day: Problems on Digits |
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41 | (4) |
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45 | (1) |
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5.4 Take-Home Problem Set |
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45 | (1) |
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46 | (1) |
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Session 6 Binary Numbers I |
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47 | (12) |
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47 | (1) |
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6.2 Discussion of the Day: Binary Land-an Informal Introduction to Binaries |
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48 | (3) |
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51 | (2) |
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53 | (1) |
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6.5 Computers and Binary Numbers |
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53 | (2) |
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6.6 Take-Home Problem Set |
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55 | (4) |
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Session 7 Binary Numbers II |
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59 | (8) |
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59 | (1) |
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7.2 Discussion of the Day: Binary Arithmetic |
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60 | (1) |
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7.3 How to Convert Decimals to Binary |
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61 | (4) |
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7.4 Take-Home Problem Set |
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65 | (2) |
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Session 8 Mathematical Dominoes Tournament |
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67 | (14) |
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68 | (1) |
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8.2 Rules of Mathematical Dominoes |
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68 | (1) |
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8.3 Mathematical Dominoes Problems |
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69 | (9) |
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8.4 Take-Home Problem Set |
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78 | (3) |
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Session 9 Pigeonhole Principle |
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81 | (8) |
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81 | (1) |
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9.2 Discussion of the Day: Pigeonhole Principle |
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81 | (4) |
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9.3 Take-Home Problem Set |
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85 | (2) |
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87 | (2) |
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Session 10 Geometric Pigeonhole Principle |
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89 | (6) |
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89 | (1) |
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10.2 Discussion of the Day: Geometric Pigeonhole |
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89 | (3) |
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10.3 Take-Home Problem Set |
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92 | (1) |
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93 | (2) |
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Session 11 Mathematical Olympiad I |
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95 | (4) |
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11.1 Event of the Day: Mathematical Olympiad |
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95 | (1) |
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11.2 Mathematical Olympiad I. First Set of Problems |
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96 | (1) |
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11.3 Mathematical Olympiad I. Second Set of Problems |
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97 | (1) |
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11.4 Mathematical Olympiad I. Additional Problems |
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97 | (2) |
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Session 12 Combinatorics I. Review |
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99 | (10) |
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99 | (1) |
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12.2 Discussion of the Day: Review of Combinatorics Techniques |
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100 | (5) |
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12.3 In-Class Problem Set |
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105 | (1) |
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12.4 Take-Home Problem Set |
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106 | (1) |
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107 | (2) |
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Session 13 Combinatorics II. Combinations |
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109 | (8) |
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109 | (1) |
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13.2 Discussion of the Day: Combinations |
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110 | (4) |
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13.3 Take-Home Problem Set |
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114 | (3) |
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Session 14 Mathematical Auction |
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117 | (4) |
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118 | (1) |
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14.2 Event of the Day: Mathematical Auction Game |
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118 | (1) |
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14.3 Mathematical Auction Problems |
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119 | (1) |
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14.4 Take-Home Problem Set |
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120 | (1) |
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Session 15 Combinatorics III. Complements. Snake Pit Game |
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121 | (8) |
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121 | (1) |
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15.2 Discussion of the Day: Complements |
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122 | (2) |
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15.3 Activity of the Day: Snake Pit on Combinatorics |
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124 | (2) |
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15.4 Take-Home Problem Set |
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126 | (3) |
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Session 16 Combinatorics IV. Combinatorial Conundrum |
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129 | (10) |
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129 | (1) |
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16.2 Discussion of the Day: Combinatorial Craftiness |
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130 | (5) |
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16.3 Take-Home Problem Set |
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135 | (1) |
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136 | (3) |
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Session 17 Magic Squares and Related Problems |
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139 | (8) |
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139 | (1) |
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17.2 Discussion of the Day: Magic Squares from 1 to 9 |
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140 | (3) |
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17.3 More on 3 x 3 Magic Squares |
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143 | (1) |
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17.4 Magic Squares Extended |
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144 | (1) |
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17.5 Take-Home Problem Set |
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144 | (3) |
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Session 18 Double Counting, or There Is More than One Way to Cut a Cake |
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147 | (10) |
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147 | (1) |
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18.2 Discussion of the Day: Double Counting |
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148 | (4) |
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18.3 Take-Home Problem Set |
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152 | (1) |
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153 | (4) |
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Session 19 Mathematical Olympiad II |
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157 | (4) |
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19.1 Event of the Day: Mathematical Olympiad |
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157 | (1) |
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19.2 Mathematical Olympiad II. First Set of Problems |
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157 | (1) |
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19.3 Mathematical Olympiad II. Second Set of Problems |
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158 | (1) |
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19.4 Mathematical Olympiad II. Additional Problems |
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159 | (2) |
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Session 20 Divisibility I. Review |
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161 | (10) |
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161 | (1) |
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20.2 Discussion of the Day: Divisibility |
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162 | (6) |
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20.3 Prime Factorization Practice. Set |
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168 | (1) |
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20.4 Prime Factorization Practice. Set 2 |
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168 | (1) |
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20.5 Take-Home Problem Set |
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169 | (1) |
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170 | (1) |
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Session 21 Divisibility II. Relatively Prime Numbers; GCF and LCM |
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171 | (10) |
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21.1 Math Warm-up: Mysteries of Prime Numbers |
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171 | (2) |
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21.2 Discussion of the Day: Relatively Prime Numbers |
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173 | (1) |
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21.3 Greatest Common Factor (GCF) |
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174 | (1) |
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21.4 Least Common Multiple (LCM) |
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175 | (2) |
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21.5 How GCF and LCM Are Related |
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177 | (1) |
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21.6 GCF and LCM. In-Class Practice Problems |
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177 | (2) |
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21.7 Take-Home Problem Set |
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179 | (1) |
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180 | (1) |
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Session 22 Divisibility III. Mathematical Race Game |
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181 | (4) |
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182 | (1) |
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22.2 Event of the Day: Mathematical Race |
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182 | (1) |
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22.3 Take-Home Problem Set |
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183 | (2) |
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Session 23 Mathematical Auction |
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185 | (4) |
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23.1 Event of the Day: Mathematical Auction Game |
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185 | (1) |
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23.2 Mathematical Auction Problems |
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186 | (1) |
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23.3 Take-Home Problem Set |
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187 | (2) |
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Session 24 Divisibility IV. Divisibility by 3 and Remainders |
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189 | (10) |
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189 | (1) |
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24.2 Discussion of the Day: Remainders When Divided by 3 |
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189 | (1) |
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24.3 Arithmetic of Remainders |
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190 | (6) |
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24.4 Take-Home Problem Set |
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196 | (1) |
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197 | (2) |
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Session 25 Divisibility V. Divisibility and Remainders |
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199 | (8) |
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199 | (1) |
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25.2 Discussion of the Day: Divisibility and Remainders |
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199 | (5) |
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25.3 Divisibility and Remainders Practice |
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204 | (1) |
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25.4 Take-Home Problem Set |
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205 | (1) |
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205 | (2) |
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Session 26 Graph Theory I. Graphs and Their Applications |
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207 | (6) |
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207 | (1) |
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26.2 Discussion of the Day: Why Graphs Are Important |
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208 | (2) |
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26.3 How to Calculate the Number of Edges in a Graph |
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210 | (1) |
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26.4 Take-Home Problem Set |
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211 | (2) |
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Session 27 Graph Theory II. Handshaking Theorem |
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213 | (8) |
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213 | (1) |
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27.2 Discussion of the Day: Odd Vertices Theorem |
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214 | (3) |
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27.3 In-Class Problem Set |
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217 | (1) |
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27.4 Take-Home Problem Set |
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218 | (1) |
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219 | (2) |
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Session 28 Graph Theory II. Solving Problems with Graphs |
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221 | (6) |
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221 | (1) |
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28.2 Discussion of the Day: Graphs Potpourri |
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221 | (5) |
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28.3 Take-Home Problem Set |
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226 | (1) |
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Session 29 Mathematical Olympiad III |
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227 | (4) |
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29.1 Event of the Day: Mathematical Olympiad |
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227 | (1) |
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29.2 Mathematical Olympiad III. First Set of Problems |
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228 | (1) |
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29.3 Mathematical Olympiad III. Second Set of Problems |
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229 | (2) |
Part 2: Mathematical Contests and Competitions |
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231 | (28) |
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233 | (2) |
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235 | (6) |
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What Is Special about Mathematical Auctions? |
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235 | (1) |
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Rules of Mathematical Auction |
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235 | (2) |
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237 | (1) |
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238 | (1) |
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239 | (1) |
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Examples of Mathematical Auction Problems |
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239 | (2) |
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241 | (6) |
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Rules of Mathematical Dominoes |
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241 | (1) |
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Why Students Like Mathematical Dominoes |
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242 | (1) |
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Why Teachers Like Mathematical Dominoes |
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243 | (1) |
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243 | (1) |
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244 | (1) |
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Dominoes Cards: How to Make Them |
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244 | (1) |
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244 | (3) |
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247 | (2) |
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247 | (1) |
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247 | (1) |
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248 | (1) |
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249 | (2) |
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Rules of Mathematical Race |
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249 | (1) |
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249 | (1) |
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249 | (2) |
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251 | (4) |
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Planning for an Oral Olympiad |
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253 | (1) |
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253 | (1) |
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254 | (1) |
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254 | (1) |
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Short Entertaining Math Games |
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255 | (4) |
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255 | (1) |
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256 | (1) |
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256 | (3) |
Part 3: More Teaching Advice |
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259 | (10) |
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How to Be a Great Math Circle Teacher |
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261 | (4) |
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261 | (2) |
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263 | (2) |
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265 | (4) |
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267 | (2) |
Part 4: Solutions |
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269 | (90) |
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Session 1 Checkerboard Problems |
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271 | (4) |
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Session 2 Review: Math Logic and Other Problem-Solving Strategies |
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275 | (3) |
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278 | (1) |
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Session 4 Proof by Contradiction |
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279 | (3) |
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Session 5 Decimal Number System and Problems on Digits |
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282 | (5) |
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Session 6 Binary Numbers I |
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287 | (3) |
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Session 7 Binary Numbers II |
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290 | (2) |
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Session 8 Mathematical Dominoes Tournament |
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292 | (3) |
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Session 9 Pigeonhole Principle |
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295 | (3) |
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Session 10 Geometric Pigeonhole Principle |
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298 | (3) |
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Session 11 Mathematical Olympiad I |
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301 | (2) |
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Session 12 Combinatorics I. Review |
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303 | (4) |
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Session 13 Combinatorics II. Combinations |
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307 | (2) |
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Session 14 Mathematical Auction |
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309 | (2) |
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Session 15 Combinatorics III. Complements. Snake Pit Game |
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311 | (4) |
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Session 16 Combinatorics IV. Combinatorial Conundrum |
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315 | (3) |
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Session 17 Magic Squares and Related Problems |
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318 | (3) |
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Session 18 Double Counting, or There Is More than One Way to Cut a Cake |
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321 | (5) |
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Session 19 Mathematical Olympiad II |
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326 | (3) |
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Session 20 Divisibility I. Review |
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329 | (3) |
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Session 21 Divisibility II. Relatively Prime Numbers; GCF and LCM |
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332 | (3) |
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Session 22 Divisibility Mathematical Race Game |
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335 | (3) |
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Session 23 Mathematical Auction |
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338 | (2) |
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Session 24 Divisibility IV. Divisibility by 3 and Remainders |
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340 | (3) |
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Session 25 Divisibility V. Divisibility and Remainders |
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343 | (4) |
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Session 26 Graph Theory I. Graphs and Their Applications |
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347 | (2) |
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Session 27 Graph Theory II. Handshaking Theorem |
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349 | (3) |
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Session 28 Graph Theory III. Solving Problems with Graphs |
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352 | (3) |
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Session 29 Mathematical Olympiad III |
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355 | (4) |
Appendix to Session 6 |
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359 | (2) |
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"Convert Decimal to Binary" Blank Table |
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359 | (2) |
Bibliography |
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361 | |