Lesson Topic: Drawing Polygons on the Coordinate Plane Lesson Objective: I can Given coordinates for the vertices, I can draw polygons in the coordinate plane, find the area enclosed by a polygon by composing or decomposing using polygons with known area formulas. I can name coordinates that
define a polygon with specific Preview of Exit Ticket Name 3 ordered pairs that could be used as vertices of a triangle on a coordinate plane and determine its area. Lets Review How can we find the distance
between points on a coordinate plane? (absolute value) How can we find area of irregular figures? Hint: there are 2 options. What shapes do we know how to find the area of?
What does the word dimension mean? Lets Review some more How many dimensions does a rectangle have and what are they?
How many dimensions do line segments have and what are they? How many dimensions do shapes have that we can calculate the area and perimeter of? Graph all four examples on the same coordinate plane
1. Plot and connect the points , , and . Name the shape, and determine the area of the polygon. Graph all four examples on the same coordinate plane 2. Plot and connect the points , , and . Then give the best name for the
polygon, and determine the area. Graph all four examples on the same coordinate plane 3. Plot and connect the following points: , , , and . Give the best name for the polygon, and determine the area. When youre done, try to find another
way to solve it. Graph all four examples on the same coordinate plane 4. Plot and connect the following points: , , ,, and . Give the best name for the polygon, and determine the area. When youre done, try to find another
way to solve it. Graph this example on the next coordinate plane 5. Two of the coordinates of a rectangle are and . The rectangle has an area of square units. Give the possible locations of the other two vertices by identifying their coordinates.
When youre done, try to find another possible solution. Exercises For Exercises 1 and 2, plot the points, name the shape, and determine the area of the shape. 1. , , ,, , and 2. ,, and
Extension: Determine if there is another way to solve each. Exercises, continued 3. A rectangle with vertices located at and has an area of square units. Determine the location of the other two vertices. 4. Challenge: A triangle with vertices located at and has an area of square units. Determine one possible
location of the other vertex. Lesson Summary & Evaluate Your Learning Answer in complete sentences: 1 What is area? 2 What different methods could you use to determine the area of a polygon plotted on the coordinate plane? 3 How did the shape of the polygon influence the
method you used to determine the area? 4 Write a situation of when you would need to use the skills practiced today in real life. How will you Sharpen Your Saw? Complete Exit Ticket in Socrative Then, grab a worksheet and get started on your homework.