A language teacher asks learners to write a paragraph on 'scarcity of water'. Learners gather information from science and social science books and other sources before writing. Such a task aims at:

Aastha is an English language teacher for class VIII. She asked her learners to read a text from the Geography textbook and set vocabulary and comprehension tasks to help them learn both the content of the subject and the language. What is this pedagogical strategy known as?

A teacher, while teaching a science lesson on atoms, designs activities that include vocabulary exercises and a debate on the uses of atomic energy. What is this teaching strategy known as?