Shared by Rafel Huerga:
Maths for 4º ESO. Topic: Trigonometry. Concepts: - Trigonometric ratios: sine, cosine, tangent. - Use of scientific calculator. - Finding out unknowns in a right triangle. - Making a sextant and using it. Driving questions: (Need to know) How could people know how far the moon is? How tall is your town church? Could you be able to measure it? Cooperative techniques. Brainstorming: Does anyone have an idea to face these problems? Leader tip: Someone should take notes. Enquiry: Learn about trigonometry and what a sextant is and afterwards we will meet together again. Gathering information. Project:
Students decide what part they are more interested in.(Choosing a or b) a) Theoretical concepts (sine, cosine, tangent) and the use of calculator. Product: Presentation to the whole group. b) Making up a sextant and using it. Product: The sextant itself, and a trip to measure untouchable objects.
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