Angela, Lesson Plans

Lesson 1:

Target audience: high school geometry students (grades 10-12)

Big Idea: teaching triangle properties by use of Geometer’s Sketchpad

Goal: Explain the difference between different triangle properties through the use of geometer’s sketchpad, and have the students explore by creating the triangles and exploring the shapes and their properties themselves.

Standards:
G.4.1 Identify and describe triangles that are right, acute, obtuse, scalene, isosceles, equilateral,
and equiangular.
· G.4.2 Define, identify, and construct altitudes, medians, angle bisectors, and perpendicular bisectors.
· G.4.7 Find and use measures of sides, perimeters, and areas of triangles. Relate these measures
to each other using formulas.

Resources:
www.indianastandards.org
http://www.dynamicgeometry.com/general_resources/classroom_activities/index.php





Lesson 2:

Target audience: High school Algebra I students (grades 9-11)

Big idea: Graphing algebraic equations

Goal: Teaching the students, through use of graphing calculators, what equations look like, what their parts mean (zeros, coordinates, x and y intercepts, etc.).

Standards:
A1.6.8 Understand and describe the relationships among the solutions of an equation, the zeros of a function,
the x-intercepts of a graph, and the factors of a polynomial expression.
A1.8.9 Use graphing technology to find approximate solutions of quadratic and cubic equations.

Resources:
www.indianastandards.org
http://www.coolmath.com/graphit/index.html



Lesson 3:

Target audience: High school Probability and Statistics students (9-12)

Big Idea: Gathering information and using it to make charts and make connections

Goal: Students will use information they gather on their own from classmates to create charts of their own through the use of graphing calculators or a spreadsheet computer program.

Standards:
PS.1.1 Create, compare, and evaluate different graphic displays of the same data, using histograms, frequency
polygons, cumulative frequency distribution functions, pie charts, scatterplots, stem-and-leaf plots, and
box-and-whisker plots. Draw these by hand or use a computer spreadsheet program.
PS.1.2 Compute and use mean, median, mode, weighted mean, geometric mean, harmonic mean, range,
quartiles, variance, and standard deviation.
PS.3.3 Use the principle of least squares to find the curve of best fit for a set of data.
PS.3.4 Calculate and interpret the correlation coefficient of a set of data.

Resources:
www.indianastandards.com