Curated OER
Perpendicular Bisector Theorem
High schoolers construct perpendicular bisectors using Cabri Jr. on their graphing calculator. They then construct conditional statements about perpendicular bisectors along with their converse, inverse, and contrapositive.
Curated OER
Constructing Quadrilaterals
High schoolers investigate quadrilateral construction in this geometry lesson. They use Cabri Jr. to construct the different quadrilaterals from the quadrilateral hierarchy given minimal definitions. The lesson reinforces the difference...
Curated OER
Midsegments of Quadrilaterals
High schoolers explore the concept of quadrilaterals as they find the midsegments of quadrilaterals using Cabri Jr. on a graphing calculator. They find midpoints, slopes, angles, and distances of lines and angles.
Curated OER
Angles of a Triangle
Learners explore the measures of the angles of a triangle in this geometry lesson. They use Cabri Jr. to investigate the sum of the measures of the interior angles of a triangle, and examine the relationships between the interior and...
Curated OER
Altitude, Median, and Angle Bisector of a Triangle
Learners investigate the special properties of an altitude, a median, and an angle bisector and explore how these special segments divide the area of a triangle. The dynamic nature of Cabri Jr. allows pupils to form and verify conjectures.
Curated OER
Constructions Triangles
Learners explore the difference between a construction and a drawing. They focus on various ways to construct different types of triangles. The activity is an application of Cabri Jr. and reinforces the difference between a constructions...
Curated OER
Ratios in Right Triangles
Learners calculate the sides of right triangles in this trigonometric ratios lesson. They use Cabri Jr. software and TI-83 or TI-84 calculators to find the side lengths and their ratios to each other for various triangles. The provided...
Curated OER
Properties of the Centers of a Triangle
High schoolers investigate properties of the four centers of a triangle and explore a special property of the circumcenter and orthocenter of a triangle. This lesson requires the use of Cabri, Jr.
Curated OER
Similar Triangles and Proportions
Pupils investigate similar triangles and proportions as they make conjectures about the length of sides of similar triangles. For this lesson, have your class construct similar triangles using Cabri Jr so that they share a common vertex.
Curated OER
Rate of Change
Students observe and calculate slopes. In this algebra lesson, students graph equations and determine the pace at which the slope is changing. They use the navigator to see the change as they graph the lines around.
Curated OER
Falling Objects
High schoolers examine the velocities of two different falling objects. They produce distance vs. time and velocity vs. time graphs using a Motion Detector and a CBL 2 to collect experimental data. Learners analyze and interpret the...
Curated OER
Graphing Quadratic Functions
Pupils explore quadratic functions in this algebra instructional activity. They investigate transformation of quadratic functions using the TI calculator. They use the vertex form for this instructional activity.
Curated OER
Energy Alternatives and Conservation
In this energy alternatives and conservation activity, students research the topic, answer 3 questions, then complete a 4 step plan to create a print or digital project. This page has numerous links to web resources.
Curated OER
Keep it Bottled Up: Linear Rates of Pressure Increase
Pupils explore linear functions in this lesson when they collect and analyze data as a chemical reaction proceeds. Learners record pressure versus time data and model the data as a linear function. They also examine the concept of slope...
Curated OER
Curve Ball
Learners explore the concept of parabolas by collecting quadratic data on a bouncing ball as it is falling using a motion detector. They plot the data and determine the equation of the quadratic in vertex form, then determine the values...
Curated OER
A System of Rules
Students write letters, create models, create a photo display, and make charts about the rules that a state has. In this rules lesson plan, students learn about and make different displays of how states come up with rules, change them,...
Curated OER
Riemann Sums
Learners calculate the area under a curve. In this calculus lesson, students use Riemann Sums to find the area under a curve. They apply the boundaries of intervals as they solve for each area.
Curated OER
Third Grade Ecuadorian Rainforest
Third graders explore the Ecuadorian Rainforest. In this writing and research lesson students utilize several information sources to learn about the Ecuadorian Rainforest. Students also summarize and paraphrase information learned...
Curated OER
How can we keep our forests intact and have chocolate too?
Fourth graders recognize the need to sustain crops in the rainforest. In this rainforest lesson plan, 4th graders consider the use of products from the rainforest. Students discuss how people of different points of view decide...
Curated OER
4th grade social studies review
In this geography worksheet, 4th graders answer multiple choice questions about laws, Native Americans, geography, and more. Students complete 25 questions.
Curated OER
Flipping Coins: Density as a Characteristic Property
Young scholars explore linear functions in a crime solving context. They collect and analyze data using linear equations, then interpret the slope and intercepts from a linear model.
Curated OER
Great Questions for Tic Tac Toe
Fourth graders plan their own activities to reinforce the concepts being taught in school. The tic-tac-toe grid is used to help students create innovative learning activities to generate ideas.
Curated OER
A Statistical Study by Adolescent Students on Relevant Issues
Students use statistics to study attributes of a local center for pregnant teenagers. They apply mean, median, mode and a correlation study between two variables.
Curated OER
Outbreak!
Students investigate their knowledge about HIV/AIDS and read an online article about treatments that have been prolonging lives of sufferers. They create media campaigns to promote HIV/AIDS awareness.