#### Calculating Circumference and Area of Circles

A PowerPoint lesson working through how to calculate the circumference and area of a circle.Worksheets provided also which extend to compound shapes.

A PowerPoint lesson working through how to calculate the circumference and area of a circle.Worksheets provided also which extend to compound shapes.

By CurlK

- (0)
**FREE**

Either use the powerpoint or flipchart file, not both.\n\nSee the 'lesson idea&' file for a rough idea of how the lesson should work.\n\nEnjoy!

- (0)
**FREE**

An easy to use, free online adaptive quiz from Mangahigh.
Find the circumference of a circle or simple arc lengths and perimeters, e.g. perimeter of a semi-circle. Include simple compound shapes, e.g. a rectangle and two semi-circles. Include approximations (pi=3), use pi button and answers in terms of pi.
No need to register, just click on the link below to get started.

- (0)
**FREE**

A KS4 worksheet with further questions on calculating the area of a circle involving multiple steps i.e subtracting the area of a circle from a square, dividing the area by 2 for a semi circle etc.

By swaller25

- (3)
**FREE**

A simple very worksheet on calculating the area of a circle when the raidus or diameter is given.

By swaller25

- (5)
**FREE**

A very simple worksheet calculating the circumference when the radius or diamter is given.

By swaller25

- (2)
**FREE**

There is several scenarios of booking a hotel room in 'Pythagoras Palace&'. The questions are split into groups with different levels of ability so the activity can easily be differentiated. Students have to consider how many nights they are staying, the type of room, special offers, cost occurred for breakfast/dinner and so on.
Ideal for KS3 and KS4 students.

By swaller25

- (1)
**FREE**

Investigation and problem solving activity in which students identify all the different pentominoes, then fit them into shapes (50 different shapes, inc. 4 rectangles, 4 squares, 17 animals, 13 pictures (inc. car, train, plane, rocket, boat), 12 other shapes (inc. cross, yin and yang, heart)).

By kmbheck

- (15)
**$2.66**

Adventure game in which students answer KS3 circle questions in order to rescue a princess. Teacher notes and answers are provided. There are 5 sections, each with 2 topics. They have 4 attempts at each topic, if they get all 4 wrong, the game ends and they will have to start again. The 5 sections are: parts of a circle, circumference, area, reverse questions: given circumference, find diameter and radius; given area, find radius and diameter. Go to my profile page to see the GCSE version including arc length and sector area and check out my other games.

By kmbheck

- (14)
**$1.33**

Adventure game in which students answer GCSE circle questions in order to rescue a princess. There are 5 sections, each with 2 topics. They have 4 attempts at each topic, if they get all 4 wrong, the game ends and they will have to start again. The 5 sections are: circumference, area, reverse questions: given circumference, find diameter and radius; given area, find radius and diameter, arc length and sector area. Go to my profile page to see the KS3 version without arc length and sector area and check out my other games.

By kmbheck

- (13)
**$1.33**

A useful help sheet that I usually laminate to measure the area and perimeter of shapes in KS2.
Children friendly and easy to read.
Objective: Measure and calculate the perimeter of a rectilinear figure (including squares) in centimetres and metres.
I can calculate the area of rectangles in square centimetres (cm2) and square metres (m2) and estimate the area of irregular shapes.

By JamesWyh

- (0)
**$2.66**