We will find the areas of triangles and do multiple example problems as the formula for area is simple but its application can be easily misunderstood.
We are going to use similar triangles to calculate the height of several objects on the school property. We will use shadows, right triangles, and the angle of the sun to enable us to find the heights.
We will discuss methods to do indirect measurements by using similar figures. We will look at situations that produce similar figures. Examples will be completed.
Assignment
none
Session Minutes
45
Minutes Student Attended
45
Lesson Comments
We completed our preliminary work on similar right triangles. We are prepared to do an indirect measurement activity tomorrow.
We will study similar figures, those with the same shape, but not the same size. These are the basis for scale models and are also used in problem solving.
Assignment
none
Session Minutes
45
Minutes Student Attended
45
Lesson Comments
We discussed similarity of circles, rectangles, squares, and triangles.
We will discuss the general concept of similar figures which will lay the foundation for the study of specific geometric figures. This will include the term dilation.
Assignment
Know the meaning of dilation.
Session Minutes
45
Minutes Student Attended
45
Lesson Comments
We discussed the concept of similarity. An application of the concept involves scale drawings which Cam may use in his reptile zoo business to lay out a plan for a building or grounds.
We will do an activity involving the Pythagorean Theorem to measure the distance between two points that have an obstacle between them. We will do two problems, each by a different method.
Assignment
none
Session Minutes
45
Minutes Student Attended
45
Lesson Comments
We were successful in our indirect measurements. The second one we did we checked our work by doing a direct measurement and found it to be 98% accurate.
