How do you find arc lengths and areas of sectors of circles? Young mathematicians investigate the relationship between the radius, central angle, and length of intercepted arc. They then learn how to determine the area of sectors of...

Going around in circles trying to find a resource on sectors of circles? Here is an activity where pupils first complete an assessment task to determine the areas and perimeters of sectors of circles. They then participate in an...

What do skateboarding and baked goods have in common with math? You can use them to connect half-pipe ramps and cakes to arcs and sectors. Pupils compare the lengths of three different ramp options of a skate park. They calculate the...

What is an annulus? Pupils first learn about how to create an annulus, then consider how to find the area of such shapes. They then complete a problem set on arc length and areas of sectors.

Perimeter check! Pairs work on finding the areas of semicircles and quarter circles using a relationship with squares. The problems challenge pupils to find areas of composite figures made from rectangles, semicircles, and quarter circles.

Introduce learners to two methods to estimate the formula for the area of a circle. The first method uses a sector of a circle to form a rectangle, and the other uses grids to estimate the area. The problems in the 18th segment of a...

Uncover strategies for finding areas of composite figures. The 23rd lesson in a 29-part module has young mathematicians decompose figures to find total area. Figures decompose to rectangles and circular regions.

Student find the area of a sector of a circle. In this geometry lesson, high schoolers  define the sector of a circle using a sketch. They find and identify examples of sector in the real world.

In this length of an arc and area of a sector worksheet, 10th graders solve and complete 12 different types of problems. First, they find the length of an arc in a circle with a given radius and central angle measure. Then, students find...

Students find the areas of geometric shapes. In this geometry lesson students find and measure the sides, perimeters, and areas of quadrilaterals, triangles, and circles. Students relate the measures to the others by using formulas.

Students find the surface area of cones. In this geometry lesson, students calculate the dimensions of each three-dimensional shape and use the correct formula to solve the problem. They relate concepts of cones to the real world.

In this college level geometry worksheet, students convert between degrees and radians.  Students determine arc length and solve problems involving the area of a sector.  The four page worksheet contains seventy-four...

Sstudents explore and analyze the properties of geometric areas.  In this geometry lesson plan, sstudents use technology to simulate spinners and dartboards in order to fing areas of circles and sectors of circles and compare and...

In this geometry worksheet, 10th graders calculate the perimeter and area using the specific formula for that polygon. There are 5 questions with an answer key.

Find the length of an arc. Students relate central angles to the area and length of a sector and graph circles on the TI to make predictions.

Here is a great way to give your class a real-life job experience, while also serving the community. They explore a variety of volunteer opportunities to build career interests, gain work experience, and help their community grow. This...

Students calculate the area and diameter length of a circle. In this geometry lesson, students investigate the use of pivots as they review parts of a circle. They create a circle using cardboard and label all the parts.

Tenth graders investigate the volume of a cylinder.  For this geometry lesson, 10th graders create three-dimensional cylinders and use a ruler to determine the dimensions.  The lesson progresses to the use of the formula to...

Students identify and categorize different problem situations or contexts using one of four measurements to solve the problem. Through guided and independent practice, they discover ways to determine which measurement to use when...

Young scholars are introduced to Kepler's 2nd law of Planetary Motion. The lesson reinforces the understanding of focal points. They calculate the sector area of an ellipse.Students expand understanding by modeling Kepler's 2nd Law of...

Learners examine population trends and predict how the age of the majority of Canadians will change 15 years from now in various geographic areas. They will gather statistical evidence that supports their projection. Learners will then...

High schoolers summarize the three sectors of industry and how these sectors applied to the Industrial Revolution. Students apply their skills in research and note-taking, as well as vocabulary building through web organizers. High...

In this limit worksheet, students use algebra to compute limits. They find the slope of the secant line and find a formula giving the slope of the secant line. This one-page worksheet contains six multi-step problems, with answers.

Motivate young conservationists to stand up and make a change. After learning about the efforts in Cascade Nation Park to reduce carbon emissions in order to preserve the wilderness, students work in groups creating action plans for...