Math Training Middle School Gus Lopez Le Anderson.
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Transcript of Math Training Middle School Gus Lopez Le Anderson.
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.
30° – 60° – 90° Triangle TheoremIn 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.
Instructions:• Use a whiteboard to show your work.
• Discuss with your group the procedure used to solve it
• Share with other groups..
Guided Practice:
GroupThe 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?
A
B
C
6 cmh
X
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.
Objective:
PWBAT design a lesson plan that incorporates the Rowland Instructional Model and compare it to their current routines.
Rowland Instructional Model
Puzzle• Scramble the cards and rearrange them according to the
Rowland Instructional Model.
SWBAT to calculate the value of each side of a triangle by using the 30-6-90 Theorem
Listen
Introduce 30-60-90 Theorem
Demonstrate how to solve
Think Out Loud
I say, you say
A/B conversations
Volunteers to answer questions
Check for understanding (CFU)
Participate in A/B conversations
Raise their hands to answer questions
Identify groups
Give a problem to each group
Walk the room to support struggling students
Listen to conversations
Talk at tables
Solve the problem
Explain and agree on a solution to the problem
Move to a new group
Share their solution with a new group
Provide two problem with increasing levels of complexity
Copy two problems in their notebooks
Solve the problems on their own
Share their solutions with their partner
Discuss whether learning objective was met
Answer two questions on post-it
Exit Ticket