Curated OER
Side Splitter Triangles
Students investigate the side splitter theorem. In this geometry lesson, students estimate and solve problems dealing with ratios and proportions. They identify angles created by lines that are parallel.
EngageNY
Informal Proof of AA Criterion for Similarity
What does it take to show two triangles are similar? The 11th segment in a series of 16 introduces the AA Criterion for Similarity. A discussion provides an informal proof of the theorem. Exercises and problems require scholars to apply...
Curated OER
Exploring Geometric Figures
Tenth graders explore mathematics by participating in hands-on daily activities. Learners identify a list of different shapes and classify them by shape, size, sides and vertices. They utilize tangrams and geometric pieces to gain...
Curated OER
Median of a Trapezoid
Students find the median of trapezoids and other polygons. For this geometry lesson, students identify important properties of trapezoids. They create trapezoids and polygons using Cabri software.
Curated OER
Properties of Special Parallelograms
Students identify properties of trapezoids. In this geometry lesson, students are put into groups and use computer programs to analyze polygons. They drag and move the shapes around as they make predictions.
Curated OER
Strongest Polygon
Students define and identify shapes by name. In this geometry instructional activity, students construct, identify and compare polygons based on the number of sides. They classify each shape based on their angle sum theorem.
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
Positive Perspectives Posters
Sixth graders create a poster using one-point visual perspective. After exploring several examples of one-point perspective, 6th graders create a drawing around the theme of school community. Posters are illustrated and installed...
Curated OER
Origami Frogs
Ninth graders explore a variety of geometry and science concept while making an origami frog. The fold paper into the shape of a frog and conduct measurement activities including frog leaps.
Alabama Learning Exchange
Coordinate Geometry
Where do the coordinates lead? As children brainstorm ways to find the location of different buildings, they learn about coordinate points and how to use them to locate areas on a grid or map. They practice using ordered pairs by playing...
Curated OER
Plain Figures And Measuring Figures
Seventh graders investigate the mathematical concept of a sector. They apply the concept to an example problem and then move into a more complex application. They find the area of the side of a cone. This is done as students calculate...
Curated OER
Individual Sundial (Cloud/Rain Activity)
Students make a simple sundial to examine the changes in shadows over time. In this sundial and shadow instructional activity, students make a simple sundial out of a manila folder and pencil. They observe how shadows change over time,...
Curated OER
Motions In Geometry
For this motions in geometry worksheet, students draw translations, rotations, and reflections. This three-page worksheet contains examples, instructions, and 6 problems. The last page contains answers.
Curated OER
Exploring Properties of Rectangular Prisms
Young scholars explore the properties of rectangular prisms. In this geometry instructional activity, students identify properties of two and three dimensional shapes. They use Cabri technology to create polygons and solve problems.
Curated OER
Our Geometic World
Young scholars walk around the neighborhood and identify various polygons and lines in buildings, nature and other objects. They design a building using various geometric patterns, shapes and lines. Students complete a descriptive...
Curated OER
Quick Recognizing Shapes Guide
Although there isn't anything for kids to complete in this shapes handout, they can use it as a guide for drawing shapes and recognizing their attributes. There are eight shapes described here: circle, oval, triangle, rectangle,...
Curated OER
Fabulous Fractals
Learners view a video to discover how patterns in nature relate to math. They explore the concept of exponential growth by observing and creating fractals. They solve and design word problems.
Curated OER
Geometry
In this geometry review game worksheet, students use the provided game cards and calling cards to play a Bingo-like game. Students learn geometric terms while playing a group game.
Curated OER
Flip's Flag
Fifth graders apply the symmetry and angle properties of polygons and use fractions to express the relationships between the areas of rectangles, squares, and triangles. They analyze various country flags and develop mathematical...
Illustrative Mathematics
Is This a Parallelogram?
If both pairs of opposite sides of a quadrilateral are congruent, is the quadrilateral a parallelogram? This task asks learners to determine the answer and to support their answer with a proof. The resource includes a commentary for...
Curated OER
Volleyball Pre-Assessment Quiz
A quick pre-assessment before you class starts the Volleyball unit. There are some matching questions, a couple of fill-in-the-blanks, and a couple of short-answer questions covering basic knowledge of volleyball. An answer sheet is...
Curated OER
The Tipping Point
Students rewrite word problems and solve using math. In this word problem lesson, students gather data and observe the data. They relate this process to the scientific method and math. They review their data to be able to answer...
Curated OER
Shape Up
Students explore differents types of triangles and quadriaterals. In this polygon instructional activity, students model identify and compare two and three dimensional geometric figures. Students create tangrams and discover the...
Curated OER
Quilt Squared
Students study West Virginia quilts. In this mathematics instructional activity, students use symmetry, geometric shapes, and patterns to create their own quilt square.