Examine ratio and scale through coordinate geometry. Scholars use two diagrams of different scale to calculate perimeter and area. Then, individuals use the perimeters and areas to find ratios.

Learn the importance of geometry to tailors. Given a shirt sewing pattern, scholars determine the actual size of the shirt. After which they answer questions that require problem solving and extending their understanding of scale.

Explore the mathematics of the paper snowflake! During the five lessons progressing in complexity from K through 12, pupils use spatial geometry to make predictions. Scholars consider a folded piece of paper with shapes cut out....

Examine the relationship between time and geometry. A series of five lessons provides a grade-appropriate problem from elementary through high school. Each problem asks learners to compare the movement of the hands on a clock to an angle...

What effect does changing the perimeter have on the area of a figure? The five problems in the resource explore this question at various grade levels. Elementary problems focus on the perimeter of rectangles and irregular figures with...

Tenth graders explore the angle relationships that exist when two lines intersect. In this geometry lesson, 10th graders estimate the measure of given angles and use their graphing calculator tools. Students use this knowledge to find...

In this math worksheet, students find the area of shapes by counting the number of grid paper squares inside each shape. This is a worksheet generator, the teacher controls the complexity of the shapes as well as the grid size. Answers...

Students play a "Battleship" type of game to practice graphing on a coordinate plane. In this coordinate graphing lesson, students select a point on their grid to place their "battleship." It the opposing team misses the ship, the...

Students find the volume of rectangular prisms.  In this volume lesson, students use a formula to find the volume of rectangular prisms.  They discuss the definition of volume and draw rectangular prisms.  Students...

Students solve Pythagorean theorem problems.  in this Pythagorean theorem lesson, students read real world problems, draw diagrams, and then solve with the Pythagorean theorem.  They define hypotenuse and leg.  students...

A page right out of the Holt Geometry book. Use a graphing calculator and graph paper to explore transformations with matrices.  

Students investigate the concepts of volume for rectangular prisms and spheres. They measure the volume of one balloon and then consider how many breaths it would take to fill the room with balloons. The rectangular prism being measured...

In this geometry worksheet, students differentiate between regular triangles and isosceles triangles. They apply the converse theorem and the vertex angle. There are eleven questions with an answer key.

For this geometry worksheet, students differentiate between isosceles and regular triangles. They calculate the area and perimeter of the triangle. There are eleven questions with an answer key.

In this geometry worksheet, 10th graders simplify radicals.  The one page worksheet contains twelve problems.  Answers are not included. 

In this geometry worksheet, students complete a homework assignment in which they name 3 lines and line segments. They write parallel, intersecting, or perpendicular, to describe the relationships between 4 pairs of lines. They draw an...

In this geometry worksheet, students complete a homework assignment in which they draw rectangles that have the same area but different perimeters and vise versa. They draw a rectangle with a given area and perimeter.

In this lines of symmetry instructional activity, young math whizzes analyze pictures of eight common objects and draw a line of symmetry for each.

Young mathematicians calculate the area of rectangles and squares. In this geometry lesson, learners are grouped in pairs and use geoboards to construct rectangles. They calculate the area of the figure by counting the number of square...

In this geometry worksheet, students identify what makes triangles similar and congruent. They use SSS,SAS and AA to identify the correct ratio of each triangle. There are 15 questions.

In this geometry instructional activity, 10th graders analyze and solve logic puzzles.  The one page interactive instructional activity contains five multiple choice questions, provides a hint, and is self checking.

Learners calculate the surface area of prisms. In this geometry lesson, students investigate the properties of prisms and analyze ways to calculate the are of a rectangular prism. They derive the formula for surface area.

Learnersinvestigate three-dimensional shapes. In this geometry lesson plan, pupils calculate the volume of cylinders using the given dimensions. They create a formula base don observation before using the real formula.

Middle schoolers identify how many smaller units can be found in a later unit. In this geometry instructional activity, students calculate the volume and the transfer amount to a smaller unit. They solve real life problems using the...