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Kubainisha asilimia ya kiasi na msingi

Identifying percent amount and base: Khan Academy video with the audio translated into Kiswahili. 

Kuelezea maana ya asilimia

Describing the meaning of precent: a Khan Academy video on percentages with the audio translated into Kiswahili

Introduction to magnetism: Wikipedia article that provides an overview of the concept.

In this lesson you will learn about:

• The concept of magnetism
• Be able to identify magnetic and non-magnetic materials
• Identify properties and types of magnets
• Understand that metals can be magnetised and de-magnetised
• Understand that magnets have a magnetic field
• Understand that the Earth has a magnetic field

The force that acts across the air gaps between magnets is the same force that creates wonders such as the Aurora Borealis. In fact, magnetic effects pervade our lives in myriad ways, from electric motors to medical imaging and computer memory. In this chapter, we introduce magnets and learn how they work and how magnetic fields and electric currents interact.

Forces at a distance are explained by fields (gravitational, electric, and magnetic) permeating space that can transfer energy through space. Magnets or electric currents cause magnetic fields; electric charges or changing magnetic fields cause electric fields.

Magnetism is an interaction that allows certain kinds of objects, which are called ‘magnetic’ objects, to exert forces on each other without physically touching. A magnetic object is surrounded by a magnetic ‘field’ that gets weaker as one moves further away from the object. A second object can feel a magnetic force from the first object because it feels the magnetic field of the first object. The further away the objects are the weaker the magnetic force will be.

In this chapter, you will learn why it is important to identify a reference frame in order to clearly describe motion. For now, the motion you describe will be one-dimensional. Within this context, you will learn the difference between distance and displacement as well as the difference between speed and velocity. Then you will look at some graphing and problem-solving techniques.

This video explores how to multiply decimals by 10, 100, 1000 etc

Video 1: Understanding decimal multiplication
Video 2: Multiplying decimals using estimation
Video 3: Developing strategies for multiplying decimals
Video 4: Developing strategies for multiplying 2-digit decimals
Online activity 1: Drag and drop the product answer to match the correct expression
Online activity 2: Answer the decimal multiplication questions