The Car Example for OOP

The `Car extends Vehicle` or `Duck extends Bird` type of tutorial obscures more than it illuminates. In good OO programming, we don’t make class hierarchies in order to satisfy our inner Linnaeus. We make class hierarchies in order to simplify the code by allowing different parts of it to be changed independently of each other, and to eliminate duplication (which comes to the same thing). Without any context as to what the code needs to accomplish, you can’t make a judgment about whether...

 Belief Discovers No New Qualities

SINCE therefore belief implies a conception, and yet is something more; and since it adds no new idea to the conception; it follows, that it is a different MANNER of conceiving an object; something that is distinguishable to the feeling, and depends not upon our will, as all our ideas do. My mind runs by habit from the visible object of one ball moving towards another, to the usual effect of motion in the second ball. It not only conceives that motion, but feels something different in the con...

 Get Away from the Metaphorical Understanding of Meaning

Propositions are supposed to be idealizations, rather like numbers or vectors or some other abstract formulation. It looks at first very powerful, and for some purposes it’s very useful. But it takes you away from enlightenment because it gives you this false sense that you haven’t understood something really until you’ve figured out how to articulate, how to point to, how to identify the proposition that a particular meaningful event has. No. There are all kinds of meaningful events th...

 Gamification Racing/Grid Movement

Ms. Spooner, a long-time game player, realizes that the Racing/Grid Movement mechanic is the right choice for her students because it is particularly good at helping to assess highly granular pieces of content or skills. She envisions a game in which her students are divided into two- or threeperson teams. She wants these students to be able to identify and produce three different things: (1) the pitch of particular notes, (2) the sounds of distinct instruments, and (3) the work of particular...

 Teaching with Pokemon Go

Learning objectives that ask students to assemble and integrate data (like a language or math class) are well-suited to the capture and find aspects of Pokémon Go!. Imagine setting up a variety of PokéStops around your campus. Each one can be visited by students as they go about gathering the data they need to accomplish the learning objective you set. Perhaps after traveling about campus, they have to return to your classroom and use the data they’ve gathered like PokéBalls to solve mor...

 Math Exercise: Multiple Approaches to Problem-Solving

For example, if the problem was to fi nd the answer to 8 × 6, students may suggest three options: memorizing the multiplication table for 6, knowing that 8 × 5 = 40 and adding another 8 to equal 48, or adding a column of six 8s. Allowing students to personally choose among approaches all confi rmed as correct and to support their choice will increase their comfort levels. Th is process also builds math logic, intuition, and reasoning skills that extend into other academic subjects and real-...

 Scientific Reasoning Explains Increases in IQ

The bombshell is that the Flynn Effect is almost certainly environmental. Natural selection has a speed limit measured in generations, but the Flynn Effect is measurable on the scale of decades and years. Flynn was also able to rule out increases in nutrition, overall health, and outbreeding (marrying outside one’s local community) as explanations for his eponymous effect.241 Whatever propels the Flynn Effect, then, is likely to be in people’s cognitive environments, not in their genes, d...