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Wednesday, 20190403

Learn how to use relationships of geometric figures to find missing measures in composite figures. Discover strategies to calculate area.

danielpjones
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Wednesday, 20190403

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  1. Wednesday, 20190403 Essential Question • EQ34 How do we use relationships of geometric figures to find missing measures? Word Wall Words: Composite figures • Store your phones • Do Not Write on desk top • Find your seat by letter and Number • Calculator • Agenda Senior Math • Bellwork : N2K • EQ34 composite figures, area • Study: WW#4 List of words or Quizlet.com (Search austinchar) • Exit Ticket Write on your paper to turn in today for a grade. • Remain in seat until bell rings. Teacher Dismisses NOT the bell. It’s always a great day to be a Wolverine!

  2. N2K Bellwork: Wednesday, 20190403 4 corners Critical Thinking activity The N2K is in labeled folders around the room. Please find your A, B, C, or D to answer the questions with your group. ***See the yellow sticky note on your desk to find your assigned folder questions. 2nd Question: Students select multiple correct answers from the many options.

  3. EQ34 How do we use relationships of geometric figures to find missing measures? Objective: • Today we are going to discover how to apply a strategy to use closed composite figures to find area.

  4. Definition: Composite Figure: a figure that is made by combining triangles, quadrilaterals, semi-circles and other two-dimensional figures. Objective: Today we are going to discover how to apply a strategy to use closed composite figures to find area.

  5. The area of a composite figure can be found by adding or subtracting the areas of the simpler figures that compose the composite figure. + Area of Rectangle Area of Semi-Circle + Area of Triangle Objective: Today we are going to discover how to apply a strategy to use closed composite figures to find area.

  6. Joe has to mow the lawn of the field below, how many square yards must he mow? 14 yd 3 yd 10 yd 10 yd 6 yd 6 yd 8 yd 8 yd + Area of Rectangle Area of Semi-Circle + Area of Triangle Objective: Today we are going to discover how to apply a strategy to use closed composite figures to find area.

  7. Detective LeRue must investigate a crime committed at the local park. How many square meters of ground must he cover when looking for clues? Total area = 28 m2 + 16 m2 + 21 m2 = 65 square meters Is there another way of finding this area? Area = 4 m (7 m) Area = 4 m(4 m) 4 m 3 m 3 m Area =3 m(7 m) 4 m 28 m2 7 m 21 m2 7 m 16 m2 Objective: Today we are going to discover how to apply a strategy to use closed composite figures to find area.

  8. Step 1: Find area of big rectangle • Step 2: Find area of smaller rectangle • Step 3: Subtract the smaller area from the larger area Total area = 77 m2 – 12 m2 = 65 square meters How can we use subtraction to find the area? 11 m 4 m 4 m 3 m 3 m Area = 3 m(4 m) 4 m 7 m 7 m Area =7 m (11 m) =12 m2 = 77 m2 Objective: Today we are going to discover how to apply a strategy to use closed composite figures to find area.

  9. EQ34 How do we use relationships of geometric figures to find missing measures? Objective: • Today we are going to discover how to apply a strategy to use closed composite figures to find area

  10. EQ34: Area with Composite Figures/Walkabout • You will need: • Eight problems posted around the room. • Calculator • Full Sheet of Paper (Labeled) • Title: EQ34: Find Area using Composite Figures • Show Your Work! Draw the figures. • Everyone must clean-up • Notes: Finding perimeter with composite figures you will need formulas posted around the room. Time: 15 minutes

  11. Exit Ticket-Answer on your work-page • EQ34 How do we use relationships of geometric figures to find missing measures? • A key tool in making learning effective is being able to summarize what you learned in a lesson in your own words… • In this lesson: • Today we are going to discover how to apply a strategy to use closed composite figures to find area. • …Therefore, in your own words summarize this lesson…be sure to include key concepts that the lesson covered as well as any points that are still not clear to you… 3 minutes Objective: Today we are going to discover how to apply a strategy to use closed composite figures to find area.

  12. The End

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