These two paper sheets show drawings of parabolas. One is labeled: 1259 (/) Fig 2. It represents the equation x 2 + 4x + 4 = y. The other is labeled: Sheet 1266 (/) Fig 4. It represnts the equation x ...

Abstract: Ethereum, currently the most actively-used and the second-largest blockchain platform, consists of a heterogeneous ecosystem, cohabited by human users, smart contracts (autonomous agents), ...

Abstract: Faded-example is an example-based instruction that lets students study worked examples where the step-by-step solutions are reduced from a full worked-example to an unsolved problem solving, ...