Marker pens Flip chart Computer graphical displays Conceptual knowledge, rules and procedures All numbers that are are called On the number line, less than zero negative numbers. negative numbers are to the left of zero. Numbers to the right of zero are positive numbers. Negative numbers are denoted by a symbol (–) written just in front of a digit. It is also important to note that the (–) sign placed between two numbers is a When this sign is placed just in front of a number it is minus sign. a negative sign. Therefore; 2 + (–7) means 2 plus negative 7 1 means negative 2 minus 1 –2 – 5 (–3) means 5 minus negative 3 – Real-life examples can be of much help to illustrate the concept of negative numbers. When water is very cold, the temperature reading on Negative temperature: the thermometer is close to zero. When water freezes to form ice, its temperature is below zero, hence negative reading of temperature. Brian scored 5 points Shedrack (–5), Comparison of quantities: less than Meshack scored 2 points Fred (+2) more than In business, capital is a zero point, profit money is positive, Business: money is negative. loss
Marker pens Flip chart Computer graphical displays Conceptual knowledge, rules and procedures All numbers that are less than zero are called negative numbers. On the number line, negative numbers are to the left of zero. Numbers to the right of zero are positive numbers. Negative numbers are denoted by a symbol (–) written just in front of a digit. It is also important to note that the (–) sign placed between two numbers is a minus sign. When this sign is placed just in front of a number it is a negative sign. Therefore; 2 + (–7) means 2 plus negative 7 –2 – 1 means negative 2 minus 1 5 – (–3) means 5 minus negative 3 Real-life examples can be of much help to illustrate the concept of negative numbers. Negative temperature: When water is very cold, the temperature reading on the thermometer is close to zero. When water freezes to form ice, its temperature is below zero, hence negative reading of temperature. Comparison of quantities: Brian scored 5 points less than Shedrack (–5), Meshack scored 2 points more than Fred (+2) Business: In business, capital is a zero point, profit money is positive, loss money is negative.
Victor_Mwesiga_%2D_PhD.docx