Curated OER
An Introduction to Quadrilaterals
Students explore different types of quadrilaterals. Students define the terminology used with quadrilaterals. They create particular quadrilaterals based on specific characteristics of the quadrilaterals using an online tool.
Curated OER
Was Kepler Correct?
Students are introduced to Kepler's 2nd law of Planetary Motion. The instructional activity reinforces the understanding of focal points. They calculate the sector area of an ellipse.Students expand understanding by modeling Kepler's 2nd...
Curated OER
Three Tangent Circles
In this tangent circles activity, students use pi to solve a problem involving tangent circles. This one-page activity contains 1 problem. The answer is provided at the bottom of the page.
Curated OER
Review For Weather Quiz 2
In this science worksheet, students look at the information carefully in preparation for a formal assessment. The focus is upon defining different aspects of air masses.
Curated OER
Tessellations
Seventh graders investigate geometric shapes using tessellations. In this geometry activity, 7th graders practice tessellations using different shapes. They create different designs using tessellations.
Curated OER
Frictionally Speaking
Second graders investigate friction by pulling a cup of marbles across a variety of surfaces, without the marbles spilling out.
Alabama Learning Exchange
Is It a Triangle?
Students explore the concept of triangle inequalities. In this triangle inequality lesson, students cut spaghetti noodles into given lengths. Students use the noodles to complete a worksheet about triangle inequalities. ...
Curated OER
Geometry: Lesson 2
Eighth graders engage in a lesson that is concerned with examining two dimensional figures with different properties that include circles, triangles, queadrilaterals, etc... They identify the types of figures that is identified as polygons.
Illustrative Mathematics
Illustrative Mathematics: 4.md,g Measuring Angles
The purpose of this task is to gain experience drawing and measuring angles, developing an understanding of the additive structure of angles. Aligns with 4.MD.C.7.
Texas Instruments
Texas Instruments: Measuring Angles in a Quadrilateral
In this activity, use an interactive, and investigative approach to determining the sum of the interior angles of a quadrilateral. They use Cabri Jr. to draw, measure, and calculate the characteristics of the angles of quadrilaterals.
Texas Instruments
Texas Instruments: Measuring Polygons an Introduction to Cabri Jr.
This activity is designed as an introduction to using the Carbri Jr. application on the TI-83+/84+ calculators. Students are guided through the menu system and are shown how to draw triangles, quadrilaterals and and a pentagon. Perimeter...
CK-12 Foundation
Ck 12: Elem Math: Identifying the Angle Given the Measure
[Free Registration/Login may be required to access all resource tools.] In this learning module, students are asked to match a given angle measure with one in a drawing. Includes video demonstrating a sample problem [2:14] and a set of...
Texas Instruments
Texas Instruments: Drawing and Measuring an Angle
Students learn to use drawing and measurement tools to measure angles. They explore and review types of angles as their measurements are altered.
Texas Instruments
Texas Instruments: Sum of Remote Interior Angles Equals Exterior Angle
Draw a triangle with exterior angle. Measure the exterior angle and each remote interior angle. Use the Alpha hand to check that the sum of the remote interior angles is always equal to the exterior angle.
E-learning for Kids
E Learning for Kids: Math: Rice Field: Angles
On this interactive website students practice various math skills using a real life scenario. Those skills include finding angles, drawing angles larger or smaller than a given angle, and locating right angles.
Khan Academy
Khan Academy: Draw Angles
Use a protractor to construct angles. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
OER Commons
Oer Commons: Exploring Polygons
For this lesson, middle schoolers explore different polygons by drawing them, measuring angles, and manipulating interactive sketches to find the angle sum for any polygon. Students also explore the angle measures in regular polygons....
CK-12 Foundation
Ck 12: Geometry: Relation of Polygon Sides to Angles and Diagonals
[Free Registration/Login may be required to access all resource tools.] Find interior angle measures of polygons by drawing diagonals to create triangles.
Texas Instruments
Texas Instruments: Cabri Geometry Tour
In this activity, students use the Cabri software to mark points, draw lines, construct parallel and perpendicular lines, angles, bisectors, and triangles. They learn how to use the tool to measure angles.
Texas Instruments
Texas Instruments: Inscribed Angles Intercepting the Same Arc
Students investigate the properties of angles inscribed in a circle. They use the drawing and measurement tools of Cabri Jr. to draw and measure certain angles, and establish the relationship between angles that intercept the same arc.
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.
ClassFlow
Class Flow: Angles in Geometry
[Free Registration/Login Required] This flipchart is a look at angles in geometry. Drawing, labeling, measuring, special angles: (right, straight, acute, obtuse) and congruence.
Texas Instruments
Texas Instruments: Collecting Data in Geometry
This activity is designed for students to make conjectures about triangles. Students will create three lists to represent the measures of the angles of the triangle. The entire class list will then be sent to each student for analysis,...
Homeschool Math
Homeschool Math: Triangles
This lesson plan provides students with an opportunity to practice drawing and measuring triangles and angles. It also shows pictures and gives definitions of each type of angle and triangle.