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The development of multiplication skills was examined in a group of children ages 8 to 12 years who were taught by discovery methods. Strategies used by the children included direct retrieval, retrieval + calculation, and counting-in-series. Repeated addition was not observed. Retrieval was the fastest and least error-prone strategy; counting-in-series was(More)
Message from the Chairman and Director General 3 The steel industry at a glance 4 How we use steel 6 Steel at the core of our economy 8 Steel's endless life cycle 12 Industry focus: environment 16 Industry focus: safety, training and community 22 Steel: meeting societies' needs sustainably 26 What governments and policymakers can do to help 36 End notes 37(More)
Observations of the blue compact dwarf galaxy Haro 3 have been obtained with the ISOCAM and ISOPHOT instruments on the Infrared Space Observatory (ISO). The PHT-S spectrum (6-12 m) is dominated by four emission bands that are frequently attributed to polycyclic aromatic hydrocarbons (PAHs) and strong SIV emission. Two CAM filters, LW6 (7-8.5 m) and LW3(More)
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