Curated OER
A Perpendicular Pilgrimage
Ninth graders design a safe passage through a 2-D obstacle. In this geometric math lesson, 9th graders engage in a hands on activity to better understand the concept of geometric and algebraic perpendicularity. Students will work in...
Curated OER
Measuring Using Leaves
Learners explore geometry by using non-standard measuring methods. In this length estimation lesson, students complete a worksheet in which different objects in their classroom are measured by three different sized leaves. Learners draw...
Curated OER
Parts of a Circle
In this geometric shapes worksheet, students respond to questions that require them to identify chords, radii, diameters and centers of 4 circles.
Curated OER
Fibonacci Patterns
Students solve problems using the Fibonacci Patterns. In this geometry instructional activity, students trackthe growing rate of a rabbit population. They collect the data and graph their results. They make predictions based on their...
Curated OER
Exploring Volume of Cylinders
Tenth graders investigate the volume of a cylinder. In this geometry lesson plan, 10th graders create three-dimensional cylinders and use a ruler to determine the dimensions. The lesson plan progresses to the use of the...
Curated OER
Archimedes
In this Archimedes worksheet, students complete and respond to 4 different problems related to different triangles. First, they find the midpoint of each side of a given triangle. Then, students connect the midpoints with the opposite...
Curated OER
Quiz: Area of a Circle
Geometers test their mastery at finding the area of a circle with 10 basic problems. Circle diagrams show line segments, points, and diameter. Distance of radii are given. They use pi as 3.14 to calculate the area. No answer key is...
Curated OER
Independent Practice 2: Recognizing Similar and Congruent
Learners examine given figures and determine if they are similar and congruent or similar and not congruent. Afterward, they match congruent figures drawn in a table. This one-page worksheet contains 12 problems.
Curated OER
Geometry, Word Search Puzzle
In this math worksheet, students look for the words that are related to the math words used in the practice of geometry. They also practice spelling.
Curated OER
Circumference of a Circle
In this circumference of a circle worksheet, 10th graders solve 10 different problems that include various illustrations of circles. First, they multiply pi by the given diameter of the circle. Then, students determine the radius by...
Curated OER
Parallel Lines
In this parallel lines worksheet, 10th graders solve 10 different problems that include determining various parallel lines. First, they describe the locus of an object that has to be kept equidistant from 2 parallel objects. Then,...
Curated OER
Tangents and Circles
In this tangents and circles learning exercise, 10th graders solve 10 different problems that include various tangents and circles. First, they determine in each diagram whether the segments shown are tangents or not. Then, students...
Curated OER
Anticipation/Reaction Guides and Discussion Groups
Seventh graders study geometric shapes around the classroom. In this geometry lesson plan, 7th graders discuss their answers in groups to the Anticipation/Reaction guide handout. Students complete the reaction side of the guide and...
Curated OER
Sort and Graph
In this sorting and graphing worksheet, students sort 15 objects and then fill in bar graphs to tell how many of each shape there are. The shapes are: heart, star and triangle.
Curated OER
Do Ten Again
In this counting to ten worksheet, learners solve four problems in which objects in a set are counted. Students then draw more objects to make ten in all. Learners then write the number 10.
Curated OER
Bye-Bye! Subtraction
In this bye-bye subtraction learning exercise, students observe numbers and their corresponding shapes, take away two from each shape, and write the differences. Students solve three problems.
Curated OER
Add Like Mad!
In this adding shapes worksheet, students add geometric shapes, record their sums, and write number sentences. Students solve three problems.
Curated OER
Geometry in the Constellations: The ER-2
Students discuss reasons to record the location of stars. They view a picture of the night sky, and discuss constellations. Students complete a worksheet of the various shapes they see in the constellations.
Curated OER
Fun Ideas for Getting A-Round in Math CIRCLES
Students see circles in real life and have fun with them
Illustrative Mathematics
Running Around a Track I
The accuracy required by the design and measurement of an Olympic running track will surprise track stars and couch potatoes alike. Given a short introduction, the class then scaffolds into a detailed analysis of the exact nature of the...
Education Development Center
Similar Triangles
Model geometric concepts through a hands-on approach. Learners apply similar triangle relationships to solve for an unknown side length. Before they find the solution, they describe the transformation to help identify corresponding sides.
Curated OER
Where's That Shape?
Your kindergartners know their shapes - but can they identify their locations? A 3x3 grid contains geometric shapes such as diamonds, circles, and hexagons, and pupils locate the shapes within the grid. Which shape is underneath the...
Illustrative Mathematics
Dilating a Line
High School geometers verify through experimentation certain properties about dilations. This multi-step problem challenges them to construct examples of dilations to verify specific facts, the final step provides an opportunity to more...
Curated OER
As Easy As Pi!
Middle schoolers conduct a scavenger hunt to find circular objects at home, then use the objects to find the pattern of pi.