Math Planet
Math Planet: Geometry: Measure Line Segments
Explores how to measure the length of a line segment through examples and a video lesson. [0:40]
Cuemath
Cuemath: Line Segment
In this lesson, you will learn about the various types of lines, line segments, rays, the line segment symbol, and line segment examples. Check out the interactive examples and try your hand at solving a few interesting practice...
Sophia Learning
Sophia: Measuring a Line Segment: Lesson 2
This video lesson [2:15] will walk you through using a ruler to measure the distance between endpoints. It is 2 of 10 in the series titled "Measuring a Line Segment." Students can take a short review quiz when finished....
Better Lesson
Better Lesson: Lines and Line Segments
A lesson to cover the standards about line segments. In this lesson, 2nd graders will measure and record the length of a line segment. Students will also compare lengths of a line but adding and subtracting line segments.
Sophia Learning
Sophia: Measuring a Line Segment: Lesson 3
This video lesson [1:04] will walk you through using a ruler to measure the distance between endpoints. It is 3 of 10 in the series titled "Measuring a Line Segment." Students can answer review questions when finished....
Sophia Learning
Sophia: Measuring a Line Segment: Lesson 5
This video lesson [1:15] will walk you through using a ruler to measure the distance between endpoints. It is 5 of 10 in the series titled "Measuring a Line Segment." CCSS.Math.Content.3.MD.B.4 Generate measurement data by measuring...
Sophia Learning
Sophia: Measuring a Line Segment: Lesson 1
This video lesson [3:59] will walk you through using a ruler to measure the distance between endpoints. It is 1 of 10 in the series titled "Measuring a Line Segment." Students can answer review questions to assess their understanding of...
CPALMS
Cpalms: Measure Up! Measuring to Make a Line Plot
[Free Registration/Login Required] In this lesson, students will generate measurement data by measuring lengths using rulers marked with halves and fourths of an inch and show the data by making a line plot. This lesson includes an...
CK-12 Foundation
Ck 12: Geometry: Segments Study Guide
[Free Registration/Login may be required to access all resource tools.] This study guide reviews how to measure the distance between two points and the Ruler Postulate. It also introduces congruency/congruent segments and midpoint.
Texas Instruments
Texas Instruments: Geoboard App
Students use the Geoboard App to measure arcs, line segments, area, and perimeter, as well as rotate, reflect, and translate objects.
Texas Instruments
Texas Instruments: Properties of Reflections
I use this activity in the beginning of the school year when introducing terminology such as angles, lines, segments, measures, perpendicular etc. The original material is from the SIMMS Integrated Mathematics using Technology, I have...
ClassFlow
Class Flow: Measure and Draw Angles
[Free Registration/Login Required] This lesson has many student interactive tricks. It is very exciting and gets the students actively engaged as they solve problems on the board. The lesson is an introduction to angles. It also reviews...
BBC
Bbc: Angles
You can pick up some valuable pointers on angles and lines here. When you finish working your way through the pages you can take an on-line "Test Bite," and check your understanding.
National Council of Teachers of Mathematics
The Math Forum: Geoboard Activities
Math Forum provides a set of links to sites that are related to geoboard activities. There are several great links to lessons using geoboards. The links provide insight into how to use them, including how to perform various measurements...
CK-12 Foundation
Ck 12: Geometry: Distance Between Two Points
[Free Registration/Login may be required to access all resource tools.] In this lesson students measure the distance between two points. Students examine guided notes, review guided practice, watch instructional videos and attempt...
CK-12 Foundation
Ck 12: Geometry: Distance Between Two Points
[Free Registration/Login may be required to access all resource tools.] In this concept, students will learn how to measure distances using rulers and grids. Students examine guided notes, review guided practice, watch instructional...
Texas Instruments
Texas Instruments: Geometric Representation of Trig Functions
Using similar triangles, a relationship is established between the six trigonometric functions of an angle and simple line segments. These relationships are then confirmed using line segment measurement capabilities of the graphing...
Illustrative Mathematics
Illustrative Mathematics: 8.g Find the Missing Angle
In this task, 8th graders are presented with a drawing of two parallel lines connected through two line segments. They are given the measures of two angles and are asked to find a third. Aligns with 8.G.A.5.
CK-12 Foundation
Ck 12: Isosceles Triangles
[Free Registration/Login Required] Students are given an Isosceles triangle and are asked to move the point on the line segment to explore how the angle measure changes. Click learn more to watch a video demonstration and click challenge...
CK-12 Foundation
Ck 12: Angles Outside a Circle
[Free Registration/Login Required] Students will move the points on the line segments to explore anlge measures outside the circle. Click learn more to watch a video and click challenge me to answer a practice question.
Illustrative Mathematics
Illustrative Mathematics: G Gpe, F Tf Coordinates of Points on a Circle
For this task, students are shown a unit circle in a plane and an angle measured from the x-axis. They must determine the coordinates of the line segment for the angle and answer a question about the sum of the coordinates. The purpose...
Purple Math
Purplemath: Conventions
A "convention" is "just the way a thing is done!". This reference material lists some common conventions (notational assumptions) for geometry and trigonometry.
PBS
Pbs Learning Media: Estimating Time From Rate
Harry estimates how long it will take him to get to the front of a long ticket line in this Cyberchase video segment.