Curated OER
Inscribing a Circle in a Triangle
Pupils investigate inscribing a circle in a triangle. They use Cabri Jr. to draw a triangle, locate the incenter, and use the distance from the incenter to a side of the triangle to inscribe a circle. The dynamic nature of the geometry...
Curated OER
Investigating Lengths of Segments in a Triangle
Pupils explore the midsegment of a triangle in the geometry lesson. They draw and measure the segment joining the midpoints of the two sides of a triangle and compare its length to the length of the third side of the triangle. The...
Curated OER
Measuring Angles in a Triangle
High schoolers investigate the sum of the measures of the angles of a triangle. They draw a triangle and measure the interior angles. Using Cabri Jr., learners find the sum of the measures of the interior angles. The lesson provides an...
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 plan, have your class construct similar triangles using Cabri Jr so that they share a common...
Curated OER
Triangle Inequality Theorem
High schoolers investigate the relationship between angle measures and sides of a triangle and the relationships among the three sides of a triangle. The use of technology (Cabri, Jr.) allows learners to make and test conjectures as they...
Curated OER
Inequalities
In this inequalities learning exercise, 10th graders solve and complete 23 various types of problems. First, they find the area of an inscribed square in a circle shown. Then, students find the total area of the inscribed polygon and...
Curated OER
Proving Quadrilaterals
In this geometry worksheet, 10th graders identify the missing angles using the polygons sum conjecture. They measure exterior and interior angles using their angle theorems. There are 63 problems.
Curated OER
How Many Missed the Boat?
In this math worksheet, high schoolers play a game and guess how many missed the boat. The whole idea behind the game is to make conjectures and draw conclusions based on the provided data.
Curated OER
Triangle Sum Theorem
Tenth graders investigate the theorems of angles and lines to prove triagle sum theorem. For this geometry lesson, 10th graders discuss the theorems of triangles and how it is used to solve for missing sides or angles. They review how...
Curated OER
Justifying Mathematical Conjectures
Sixth graders, in groups, explain why they think something. This requires students to listen to and respond to each other. In this particular lesson, 6th graders explain to their classmates when one can or cannot construct a specific...
Curated OER
Proportional Segments Between Parallel Lines
Students identify similar triangles. In this proportional segments instructional activity, students identify corresponding sides, set up ratios, and find the length of the missing side of a triangle. They use the...
Curated OER
Triangle Inequality Theorem
Students identify properties of triangles. In this geometry lesson plan, students create triangles using three different segments. They make conjectures and predictions.
Curated OER
Consecutive Numbers
Like all of the Problem Solving units, this one aims to introduce young scholars to the underlying ideas of mathematics through a problem. The problem here requires a knowledge of arithmetic and the use of some algebra. For this unit we...
Curated OER
Exploring Functions with CAS
Your mathematicians will examine several conjectures regarding even and odd functions and investigate a formal proof of the conjectures using CAS.
Curated OER
Constructing Midsegments of Triangles
Students construct midsegments. In this geometry lesson, students make conjectures and apply properties of triangles to solve problems. They complete an activity on the computer.
Curated OER
Special Right Triangles
Students identify different types of special right triangles. In this geometry lesson, students differentiate between right triangles and isosceles triangles. they construct the triangles using geometry software and make conjectures...
Curated OER
Make a Box
Learners use specific dimensions to create a box. In this geometry lesson plan, students analyze the different properties of two and three dimensional shapes. They make conjectures and use it to solve problems.
Curated OER
Making Parallel Lines
Students differentiate between parallel and perpendicular lines. For this geometry lesson, students make conjectures and apply it to solve real life situations. They collect data and make predictions based on the data.
Curated OER
Linking Algebra to Temperature
Students convert between two units as they calculate the temperature. In this algebra lesson, students collect data on seasonal climate and create a graph. They make conjectures based on their data collection.
Curated OER
Geometry: Classifying Quadrilaterals
Students use construction technology to identify and find relationships between the attributes of various quadrilaterals. They make and test conjectures about the distinguishing properties of parallelograms, rectangles, rhombuses,...
Curated OER
Incenter of a Triangle
Tenth graders explore the properties of the incenter of a triangle. In this geometry lesson, 10th graders construct a triangle and the angle bisectors of each angle. The dynamic properties of Cabri Jr. allow students to locate and...
Curated OER
Deductive Reasoning
In this deductive reasoning activity, 10th graders solve 6 various problems applying deductive reasoning to each. First, they determine if a valid conclusion can be reached from the 2 true statements using the Law of Detachment or the...
Pennsylvania Department of Education
Equally Likely and Unequally Likely Outcomes
Students explore probability. In this statistics/probability lesson, students compare experimental and theoretical probability and use experimental probability to make predictions and conjectures. Students explore the...
Curated OER
Multiply Boxplots
Students identify the mean, quartiles and range of a boxplot. In this statistics lesson, students identify cooperative boxplot as it relates to the data. They make conjectures about students grade distribution.
Other popular searches
- Triangle Sum Conjecture
- Conjecture Science
- Conjecture Triangle
- Conjecture of a Rhombus
- Goldbach Conjecture
- Conjecture on Sets
- Conjecture From Patterns
- Triangle Angle Conjecture
- Geometry Conjectures
- Conjectures. Expressions
- Goldberg Conjecture
- Similar Triangle Conjectures