In this parts of a circle instructional activity, students place the names of 6 different parts of a circle in rectangular place holders. They use labels such as cord, secant, diameter, radius, tangent, and center.

Eighth graders find the area and circumference of circles. In this area and circumference of circles lesson plan, 8th graders follow a step by step instructional activity and then demonstrate the skills on their own with circles they are...

Sixth graders discover Pi.  In this discovering Pi lesson, 6th graders measure the diameter and circumference of various circular objects.  Students record their measurements in a table.  Students discuss how Pi relates to...

In this circles worksheet, 10th graders solve and complete 8 different types of problems. First, they find the measures of each segment given the center of a circle. Then, students find the length of a side of a triangle shown within a...

In this geometric shapes worksheet, students count how many triangles, rectangles, and circles they see and write down the numbers in the boxes provided.

Students relate the trigonometric functions to the coordinates of the unit circle with access to explorelearning.com. They determine the signs of trigonometric functions in each quadrant.

Students examine how the circumference, diameter, and the relationship of Pi of a circle are related. They count the summer rings of a tree to determine its growth.

For this Geometry worksheet, 10th graders solve a problems involving area of a circle given information regarding surface area.  The one page worksheet contains one problem with answer. 

In this circles worksheet, students view a set of different sized circles. Worksheet is for reference and has no associated activities.

In this circle worksheet, students study that two semi circles make a complete circle. Students cut out the two halves of the circle and paste them together on the big circle that is shown.

For this circle worksheet, students solve 8 problems: finding percentage increase, finding differences in area and perimeter, finding circumference and area.

In this shape worksheet, students focus on the shape of a circle. Students study 8 pictures and put an x on those that have the circle shape.

Second graders explore shapes and create a Silly Shape book. Students recognize that shapes have certain properties and be able to define them. Example, a triangle is any three-sided shape. Students' job is to make a picture on...