1.2 In a Spin

Do Now:

• Complete the "Entrance Card" that is on your table groups.  This is to be done individually.
• Open your "Squarebook" to where you completed the homework for last class and be prepared to discuss questions 64 and 65 with your group/class

Objective:
The main focus of this lesson is to be able to identify some common "benchmark angles".  These are angles that are usually pretty easy to recognize such as 45 degrees, 90 degrees etc.  We are going to do this by playing a game and then estimating some angle sizes based on these benchmark angles.  As a quick introduction to angles and rotation.  Check out the videos below:

This one is going to hurt!!



Or check out this video from the 2014 Olympics.  How many spins do you count?  How many degrees of rotation is that?



I am a huge fan of ski aerials.  Watch this guy try to break a world record by performing 4 back flips and 4 full rotations in a single jump.



Group Work:

With a partner you are going to complete Task A which involves playing a game called "Four in a Row".

In this game, the objective is to get 4 places on the grid in a row.  Here is the game board in the event that you would like to practice more:

By the end of this problem you should be able to do the following:

• Recognize basic benchmark angles of 30, 45, and 90 degrees.
• Use multiples of benchmark angles to determine the size of other angles on a polar grid
• Find and label the location of a point on a polar grid.

HOMEWORK:

1. ACE Problems: (6-8) (45, 46) (67+)