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Math Training Middle School Gus Lopez Le Anderson Introduction Model Structured Practice Guided Practice Independent Practice Closure Special Right Triangles Objective: SWBAT calculate the value of each side of a right triangle by using the 30-60-90 Theorem to find the missing sides of 2 given right triangles. In a 30° – 60° – 90° triangle, the hypotenuse is twice as long as the shorter leg, and the longer leg is √3 times as long as the shorter leg. Label the side of the triangle: Model: Hypotenuse = 5 Long Leg = Hypotenuse = √3 Short Leg = x Long Leg = Structured Practice: Solve for missing sides. 4 18 y x Instructions: • Use a whiteboard to show your work. • Discuss with your group the procedure used to solve it • Share with other groups.. Guided Practice: The logo on the recycling bin below resembles an equilateral triangle with side lengths of 6 centimeters. What is the height and missing side of the logo? B 6 cm h A X C The body of a dump truck is raised to empty a load of sand. How high is the 14 ft. body from the frame when it is tipped upward at 60° angle? Round to the nearest tenth. Independent Practice: Find the values of x and y. y x 9 Solve for x and y. √3 y x Objective: PWBAT design a lesson plan that incorporates the Rowland Instructional Model and compare it to their current routines. 30 - 60 - 90 Theorem Bridge Pythagorean Theorem Teacher Teacher Teacher Teacher Teacher Teacher Students Teacher Students Students Teacher Teacher Rowland Instructional Model Puzzle • Scramble the cards and rearrange them according to the Rowland Instructional Model. Introduction Model Structured Practice Introduce 30- A/B conversations 60-90 Theorem Demonstrate how to solve Volunteers to answer questions Think Out Loud Check for SWBAT to calculate the value of each I say, you say side of a triangle by using the 30-690 Theorem understanding (CFU) Guided Practice Identify groups Give a problem to each group Talk at tables Solve the problem Explain and agree on a solution to the problem Move to a new group Listen Raise their hands to answer questions Share their solution with a new group Closure Provide two problem with increasing levels of complexity Walk the room to support struggling students Listen to conversations Participate in A/B conversations Independent Practice Copy two problems in their notebooks Discuss whether learning objective was met Solve the problems on their own Answer two questions on post-it Share their solutions with their partner Exit Ticket