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Outcomes

In this lesson you will learn about:

1. Rounding off numbers.
2. Estimating answers to calculations.

This YouTube video explores the concepts of approximations and estimations.

Video 1: How to calculate the area and circumference of circles and semi-circles
Video 2: Examples pertaining to calculating the area and circumference of circles and semi-circles
Video 3: Common mistakes made when calculating the area and circumference of circles and semi-circles

Note: After watching each video, click on the 'back button' to return to the VLE

Video 1: How to calculate the area of a parallelogram
Video 2: Examples relating to calculating the area of a parallelogram
Video 3: Common mistakes made when calculating the area of a parallelogram

Note: After watching each video, click on the 'back button' to return to the VLE

Video 1: Area of a rectangle
Video 2: Examples pertaining to areas of rectangles

Video 1: How to calculate the area of a trapezium
Video 2: Examples pertaining to calculating the area of a trapezium
Video 3: Common mistakes made when calculating the area of a trapezium

Note: Click on the 'back button' after watching each video, in order to return to the VLE

Video 1: Area of a triangle
Video 2: Examples pertaining to the area of triangles
Video 3: Common mistakes made when calculating the area of a triangle
Note: Click on the 'back button' to return to the VLE after watching each video

Outcomes:

• Describe how the concept of density relates to an object's mass and volume.
• Explain how objects of similar mass can have differing volume, and how objects of similar volume can have differing mass.
• Explain why changing an object's mass or volume does not affect its density (ie, understand density as an intensive property).
• Measure the volume of an object by observing the amount of fluid it displaces.
• Identify an unknown material by calculating its density and comparing to a table of known densities.

Outcomes:

• Design a diet and exercise regimen.
• Estimate the number of calories required for basic survival.
• Estimate the number of calories burned by exercise.
• Explain how heart health depends on diet and exercise.
• Explain how Body Mass Index (BMI) depends on weight and height.

Clarifying some points on evolution and intelligent design.