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• #### Angle Relationships

• Define and give examples of alternate interior, alternate exterior, adjacent, vertical and corresponding angles • Discuss parallel and perpendicular lines • Define and show examples of right angles, obtuse angles, and acute angles
• #### Coin Toss

The students will how to go about measuring how likely something is to happen with the use of the probability ratio. They will then apply their knowledge of probability using a computer model of tossing a coin. • They will be able to manipulate the percent of probability, and make educated guesses about the change that occurs.
• #### Exploring Angles

The students will investigate the sum of the interior angles of various triangles and conjecture and prove the following theorem: • The sum of the interior angles in a triangle is 180° . The extension activities include conjecturing and proving the following theorems: The sum of the interior angles in a quadrilateral is 360° . The sum of the measures of the interior angles in a convex n-gon is 180°(n-2).
• #### Global Warming: Can We Help Curb the Warming Trend?

Students will read the following articles to become familiar with the idea of global warming, what experts are saying, and how carbon dioxide is believed to contribute to this condition.
• #### TI- Inequalities Exploration Lesson Plan

The students will use their knowledge of systems of equations and inequalities to explore different ways of seeing and interpreting the solutions to given problems using the graphing calculator.