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1 Mathematical Problem-Solving with Technology: An Overview of the Problem@Web Project |
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1 | (20) |
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1 | (1) |
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1.2 Young People with Technology |
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2 | (2) |
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1.3 Young People's Mathematical Problem-Solving with Technology |
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4 | (2) |
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6 | (2) |
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1.5 The SUB12 and SUB14 Mathematics Competitions |
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8 | (7) |
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1.6 Methodological Issues |
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15 | (2) |
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17 | (4) |
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18 | (3) |
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2 Youngsters Solving Mathematical Problems with Technology: Their Experiences and Productions |
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21 | (34) |
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21 | (1) |
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2.2 The Participants in the Mathematical Competitions SUB12 and SUB14 |
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22 | (4) |
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2.3 The Participants and the Use of Digital Technologies |
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26 | (3) |
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2.4 The Participants' Productions with Digital Technologies |
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29 | (22) |
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2.4.1 From the Use of Paper and Pencil to Writing with Word and Excel |
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29 | (6) |
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35 | (4) |
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2.4.3 The Use of Images and Diagrams |
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39 | (5) |
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2.4.4 The Use of Numerical Software |
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44 | (1) |
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2.4.5 The Use of Geometrical Software |
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45 | (6) |
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51 | (4) |
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53 | (2) |
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3 Perspectives of Teachers on Youngsters Solving Mathematical Problems with Technology |
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55 | (28) |
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55 | (2) |
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3.2 The Role of the Teachers in the Mathematical Competitions |
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57 | (6) |
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3.2.1 The Support of the Teachers: From the First Round to the Final |
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59 | (3) |
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3.2.2 The Social Part of the Competitions: The Meeting at the Final |
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62 | (1) |
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3.3 Perspectives of Teachers About the Mathematical Competitions SUB12 and SUB14 |
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63 | (9) |
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3.4 Mathematical Communication: An Additional Challenge |
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72 | (2) |
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3.5 The Use of Technology: The Sharing of Experiences Between Teachers and Students |
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74 | (5) |
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3.6 Overview and Conclusion |
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79 | (4) |
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80 | (3) |
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4 Theoretical Perspectives on Youngsters Solving Mathematical Problems with Technology |
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83 | (30) |
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4.1 The Theoretical Stance |
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83 | (2) |
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4.2 Problem-Solving as Mathematisation |
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85 | (3) |
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4.3 Problem-Solving as Expressing Thinking |
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88 | (8) |
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4.3.1 Expository Discourse in Problem-Solving |
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90 | (3) |
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4.3.2 Technology Used for Expressing Thinking in Problem-Solving |
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93 | (3) |
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4.4 Multiple External Representations |
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96 | (2) |
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4.5 Humans-with-Media and Co-action with Digital Tools |
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98 | (8) |
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106 | (7) |
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108 | (5) |
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5 Digitally Expressing Conceptual Models of Geometrical Invariance |
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113 | (28) |
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5.1 Main Theoretical Ideas |
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113 | (9) |
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5.1.1 Perceiving Affordances of Digital Tools |
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114 | (3) |
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5.1.2 The Indivisibility Between the Subject and the Context |
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117 | (2) |
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5.1.3 Humans-with-Media Mathematising |
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119 | (1) |
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5.1.4 Mathematisation with Dynamic Geometry Software |
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120 | (2) |
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122 | (2) |
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124 | (14) |
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5.3.1 The Problem: Building a Flowerbed |
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124 | (1) |
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5.3.2 Zooming in: The Participants' Productions |
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125 | (10) |
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5.3.3 Zooming Out: Comparing and Contrasting |
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135 | (3) |
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5.4 Discussion and Conclusion |
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138 | (3) |
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139 | (2) |
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6 Digitally Expressing Algebraic Thinking in Quantity Variation |
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141 | (32) |
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6.1 Main Theoretical Ideas |
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141 | (6) |
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6.1.1 Digital Representations in the Spreadsheet |
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142 | (2) |
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144 | (1) |
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6.1.3 Problem-Solving with the Spreadsheet and the Development of Algebraic Thinking |
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145 | (1) |
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6.1.4 Expressing Algebraic Thinking and Co-action with the Spreadsheet |
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146 | (1) |
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147 | (2) |
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149 | (19) |
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6.3.1 The First Problem: The Treasure of King Edgar |
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149 | (11) |
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6.3.2 The Second Problem: The Opening of the Restaurant "Sombrero Style" |
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160 | (8) |
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6.4 Discussion and Conclusion |
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168 | (5) |
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171 | (2) |
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7 Digitally Expressing Co-variation in a Motion Problem |
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173 | (36) |
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7.1 Main Theoretical Ideas |
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173 | (7) |
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7.1.1 Co-variation and Modelling Motion |
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175 | (3) |
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7.1.2 Visualisation in Motion Problems |
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178 | (2) |
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180 | (2) |
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182 | (5) |
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7.3.1 The Experts' Solutions to the Problem |
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182 | (4) |
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7.3.2 Definition of Categories |
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186 | (1) |
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7.4 Analysis of the Students' Solutions to the Problem |
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187 | (17) |
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7.4.1 Conceptual Models Involved in the Participants' Problem-Solving and Expressing |
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188 | (3) |
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7.4.2 Forms of Representation in Students' Digital Productions |
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191 | (13) |
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7.5 Discussion and Conclusion |
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204 | (5) |
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207 | (2) |
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8 Youngsters Solving Mathematical Problems with Technology: Summary and Implications |
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209 | (32) |
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209 | (1) |
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8.2 The Problem@Web Project |
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210 | (4) |
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8.3 The Youngsters Solving Mathematical Problems with Technology |
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214 | (4) |
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8.4 The Perspectives of the Youngsters' Teachers |
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218 | (5) |
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8.5 Theoretical Framework |
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223 | (2) |
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8.6 Digitally Expressing Mathematical Problem-Solving |
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225 | (7) |
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8.6.1 Digitally Expressing Conceptual Models of Geometrical Invariance |
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226 | (1) |
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8.6.2 Digitally Expressing Algebraic Thinking in Quantity Variation |
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227 | (3) |
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8.6.3 Digitally Expressing Co-variation in a Motion Problem |
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230 | (2) |
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8.7 Discussion of the Findings |
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232 | (3) |
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8.8 Implications and Suggestions for Further Research |
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235 | (6) |
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237 | (4) |
Afterword |
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241 | (4) |
About the Authors |
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245 | (4) |
Index |
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249 | |