Activity
Texas Instruments

Texas Instruments: Midpoint of a Segment

For Teachers 9th - 10th Standards
Students review the basic geometry definitions of segment and midpoint, and learn to use drawing and measurement tools. They explore changes in measurements as the figure is altered.
Activity
Texas Instruments

Texas Instruments: Finding the Endpoint of a Segment Given One Endpoint and The

For Teachers 9th - 10th Standards
The purpose of the activity is for students to verify how to determine the coordinates of an endpoint of a segment, given the midpoint and other endpoint, using the dynamic capabilities of Cabri Jr.
Unknown Type
Khan Academy

Khan Academy: Midpoint Formula

For Students 9th - 10th
Find the midpoint of a segment on the coordinate plane, or find the endpoint of a segment given one point and the midpoint. This is a four-problem quiz/practice.
Activity
Texas Instruments

Texas Instruments: Midpoint Formula Discovery

For Teachers 9th - 10th
Step by step instructions are given for the students to draw a segment, find the midpoint, and label the coordinates of the two endpoints and the midpoint. The students then record the data in a table for various segments. Based on the...
Activity
Varsity Tutors

Varsity Tutors: Hotmath: Practice Problems: Midpoint of a Line Segment

For Students 9th - 10th
Twenty problems present a variety of problems working with various aspects of finding the midpoint of a line segment. They are given with each step to the solution cleverly revealed one at a time. You can work each step of the problem...
Lesson Plan
Alabama Learning Exchange

Alex: Midpoint of a Line Segment.

For Teachers 6th - 8th Standards
Investigate finding the midpoint of a line segment and derive the formula for the midpoint of two points on a coordinate plane. This lesson plan was created by exemplary Alabama Math Teachers through the AMSTI project.
Activity
Other

Git: What Is the Slope Intercept Form of a Line?

For Students 9th - 10th
Not only does this site show what the slope-intercept form is, but it helps you find the slope and the intercept of a line. There is also additional information on parallel lines, parametric form, and the distance between two points.
Unknown Type
Khan Academy

Khan Academy: Midpoint Formula

For Students 9th - 10th Standards
Find the midpoint of a segment on the coordinate plane, or find the endpoint of a segment given one point and the midpoint. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or...
Unit Plan
CK-12 Foundation

Ck 12: Polar Form of Complex Numbers

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] Calculate the distance between numbers in the complex plane as the modulus of the difference, and the midpoint of a segment as the average of the numbers at its...
Whiteboard
ClassFlow

Class Flow: Midpoint of a Line Segment

For Teachers 9th - 10th Standards
[Free Registration/Login Required] This flipchart has a clear explanation of ways to use the midpoint of a line segment with algebra.
Unit Plan
Texas Education Agency

Texas Gateway: Coordinate Geometry: Special Segments

For Students 9th - 10th Standards
The student will derive and use the slope and midpoint formulas to verify geometric relationship that include parallelism and perpendicularity of lines. Then, the student will determine an equation of a line parallel or perpendicular to...
Handout
Wolfram Research

Wolfram Math World: Midpoint

For Students 9th - 10th Standards
This MathWorld site offers a lesson on finding the midpoint of a line segment using a compass and finding the midpoint of the sides of a triangle. This site also has an interesting way of drawing two triangle with equal area by finding...
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Midpoint Formula

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] Given the endpoints of a line segment, find the midpoint between them using the Midpoint Formula.
PPT
Sophia Learning

Sophia: Midpoint Formula in the Real World: Lesson 5

For Students 9th - 10th
This lesson will provide real world examples that require a learner to set up and solve for the midpoint of a segment using the midpoint formula. It is 5 of 5 in the series titled "Midpoint Formula in the Real World."
Unit Plan
Sophia Learning

Sophia: Finding a Missing Coordinate Using the Midpoint Formula: Lesson 2

For Students 9th - 10th
This lesson demonstrates how to find a missing x or y coordinate of a segment when given the midpoint of the two points on a coordinate plane. It is 2 of 5 in the series titled "Finding a Missing Coordinate using the Midpoint Formula."
Handout
Oswego City School District

Regents Exam Prep Center: Geometry Vocabulary Resources

For Students 9th - 10th
A list of geometry definitions and a matching activity.
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Midpoints and Segment Bisectors

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] Apply the definitions of midpoint, segment bisector, and angle bisector.
Activity
Texas Instruments

Texas Instruments: Investigating Segments in a Right Triangle

For Teachers 9th - 10th Standards
In this activity, students review definitions of terms such as right triangle, hypotenuse, midpoint, vertices, and equidistant. They also discover an important characteristic of the midpoint of the hypotenuse.
Activity
Texas Instruments

Texas Instruments: Investigating Lengths of Segments in a Triangle

For Teachers 9th - 10th
In this activity, students connect the midpoints of two sides of a triangle, to draw the midsegment of the triangle. They investigate how the length of this segment relates to the third side of the triangle. [Requires Adobe Reader.]
Activity
Texas Instruments

Texas Instruments: Investigating Segments in a Quadrilateral

For Teachers 9th - 10th Standards
In this activity, students use the tools of Cabri Jr to test their knowledge of geometry. They investigate the properties of the shape formed by connecting the midpoints of adjacent sides of a quadrilateral.
Activity
CK-12 Foundation

Ck 12: Segments From Chords

For Students 9th - 10th Standards
[Free Registration/Login Required] Students will move points to create a midpoint on a chord. Click 'Challenge Me' to answer a practice question.
Unit Plan
CK-12 Foundation

Ck 12: Volume of Pyramids: Midpoints and Segment Bisectors

For Students 6th - 9th Standards
[Free Registration/Login Required] Students explore the concept of midpoints and segment bisectors by navigating through the interactive learning module and then answering questions that go along with the module. Students can also learn...
Unit Plan
CK-12 Foundation

Ck 12: Volume of Pyramids: Midpoint Map

For Students 9th - 10th Standards
[Free Registration/Login Required] Students explore the concept of midpoints and segment bisectors by navigating through the interactive learning module and then answering questions that go along with the module. Students can also learn...
Activity
National Council of Teachers of Mathematics

The Math Forum: Ask Dr. Math: Midpoint Formula for Any Fraction

For Students 9th - 10th
The Midpoint Formula finds the exact point that is halfway between two points. "Dr. Math" provides a formula that can be used to locate a point that is some fractional part of the entire segment.