Chapter 7 Knowledge learning and instruction o 7.1.3 How should concepts be taught? o Rule 2: select examples that differ from one other The science teacher presenting the stars includes examples of both new and old stars o Rule 3: compare and contrast examples and nonexamples. The examples of objects in space that are not stars include planets, our moon, and meteors流星). The concept mammal, easy examples are dogs, cats and humans, and nonexamples are insects, reptiles(爬行动物), and fish. How about dolphins, bats, snakes, and kangaroos?Chapter 7 Knowledge learning and instruction ⚫ 7.1.3 How should concepts be taught? ⚫ Rule 2: select examples that differ from one other. The science teacher presenting the stars includes examples of both new and old stars. ⚫ Rule 3: compare and contrast examples and nonexamples. The examples of objects in space that are not stars include planets, our moon, and meteors(流星）. The concept mammal, easy examples are dogs, cats and humans, and nonexamples are insects,reptiles（爬行动物）, and fish.How about dolphins, bats, snakes, and kangaroos?