Alexa and I continued working on Trig functions. I introduced secant, cosecant, and cotangent. They are each the inverses of cosine, sine, and tangent, respectively. Hence, their ratios are just the reciprocals of the 3 original functions. I showed her how to find the sin, cos, and tan on a calculator. I taught her how to find missing sides of triangles by using trig functions and a given angle.
We reviewed the trig ratios of sin, cos, and tan. I then taught Alexa how to use these definitions to find the sin, cos, and tan of the acute angles in a triangle. She should first label the hypotenuse of a right triangle. Then, she can label the sides of the triangle based on the angle that we are referencing. Once the sides are labelled, it is easier to write out the ratios. We worked through several questions on an exercise, and Alexa was starting to understand it better.
Session Minutes
90
Minutes Student Attended
60
Lesson Comments
Alexa did not answer the call for our morning session of 30 minutes
We wrapped up our unit on logarithms with a puzzle activity that Alexa enjoyed.
I introduced RIght Triangle Trigonometry to her. In a right triangle, there are relationships between the angles and the sides. These relationships are defined by Sine, Cosine, and Tangent. The Sine of an angle = The length of the Opposite side/ length of Hypotenuse. The Cosine of an angle = The length of the Adjacent side/length of Hypotenuse. The Tangent of an angle = The length of the Opposite side/the length of the Adjacent side. I introduced these concepts to Alexa, and we will continue working with them during our next session.
multiplicaton, money, timed subtraction and spiral practice
Lesson Outline
Macy completed a timed subtraction page. We continue to practice one-digit multiplication. Macy is working hard to memorize her three times table. Given a group of coins, Macy did very well determining the monetary sum. Spiral practice today included: linear measurement, fractional parts, addition with decimals, computation of two problems and then determining the correct comparative sign and caluculating the area of a rectangle.
