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The Great Quadrant Guessing Game

I created The Great Quadrant Guessing Game several years ago to give my Pre-Calculus students some extra practice determining which quadrant of the coordinate plane was represented by two trigonometric facts. The Great Quadrant Guessing Game For example, in which quadrant is the sine of an angle positive while the cosine of the same angle …

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Odd One Out Coterminal Angles Activity

I created this odd one out activity to give my pre-calculus students extra practice identifying coterminal angles. In this activity, students were placed in groups of 4. Each group was given a set of four angle cards. Three of the angles are coterminal angles (meaning they share the same terminal side when sketched in standard …

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One or Negative One Trig Identities Worksheet

I really like the simplicity of this One or Negative One? Trig Identities Task that I found in the 8th Edition of Demana and Waits’ Pre-Calculus Textbook (Section 5.1). That’s why I decided to turn it into a worksheet! Trig identities are one of my favorite topics to teach in Pre-Calculus. To me, they are …

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Building a Cone to Visualize Conic Sections

I love teaching conic sections, so I was super-excited to discover a set of instructions online for building a cone to help students visualize the four different types of conic sections. This made the perfect addition to our last unit of the year in Pre-Calculus – conics! Conics used to be a topic I taught …

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