- This topic has 0 replies, 1 voice, and was last updated 11 years, 4 months ago by
.
Viewing 0 reply threads
-
Posts
-
-
Before introducing the students to what the tangent ratio even is, I use one of my entire whiteboards and draw a picture of a guy in a boat stranded at sea, with a small lighthouse in the distance. I write that the lighthouse is 70 feet high and all the man has in his boat is a calculator (mysteriously), one bottle of drinking water, orange jellybeans, and a protractor (mysteriously)–and the protractor measures a two-degree angle from the water to the top of the lighthouse. I then tell the students that after today we will be able to figure out how far that lighthouse is from us with just those items and info. I leave the problem on the board throughout the lesson, and in the last five minutes of class we solve the problem.
-
Viewing 0 reply threads
- You must be logged in to reply to this topic.