Everyone. We're going to start looking at a brand new, very important concept. Does anyone see something familiar on the board? A pie emoji. We love pie. Today, we're not just eating pie. A fraction is a number that names part of a whole object or group. Let's say that together: 'A fraction names a part of a whole.' Fantastic. For a real example we all know. Imagine your mum makes a big, soft chapati. Delicious, right? She wants to share it equally among you and your three best friends. That's four of you in total. If you cut it into four equal pieces... What happens? Each friend gets one piece out of the four total pieces. In math, we write that like this: one over four. This is the fraction 'one-fourth'. It tells us we have one part of something that was divided into four equal parts. To understand fractions well, we need to know three key words. First, the WHOLE. This is the complete item, like the whole uncut chapati. Next, a PART. This is one piece of that whole, like your single piece of chapati. Finally, we SHARE or divide the whole into equal parts. Let's think for a moment. Can you find fractions in your home? Maybe think about a mandazi cut into pieces, or a loaf of bread. Around you after class and see if you can spot something that could be described as a part of a whole.
We're going to dive into a very important part of math today: fractions. Fractions are everywhere — when we share a pizza, when we divide a cake, or when we split a mandazi among friends. Let's get started. Every fraction has two parts. The top number is called the numerator. This tells us how many parts we have or we take. Think about it as the number you can count. The bottom number is the denominator. This tells us the total number of equal parts the whole thing is divided into. It's like the total number of slices. This circle represents a whole pizza. It's divided into four equal slices. Here, one slice is shaded or taken. How do we write that as a fraction? We have 1 part taken, and there were 4 total slices. That's written as one over four, or one-fourth. Another example from our Kenyan life: imagine a mandazi divided into six equal pieces. If you take three pieces, what fraction do you have? The numerator is 3 — the parts you took. The denominator is 6 — the total pieces. You have three-sixths. To remember: numerator means parts taken, denominator means total parts. It's like a simple rule. If you can count what you have and know the total, you can write any fraction.
Some specific fractions we use all the time. We just talked about what a fraction is, and this page is all about Halves, Thirds, and Quarters. Can you all say it with me? One-half. When we cut or divide something into two equal parts, each part is called a half. A different fraction. This is one-third. When we divide a whole into three equal parts, each part is called a third. Imagine cutting a chapati into three equal pieces for three friends. Finally, we have one-quarter. When we split something into four equal parts, each part is a quarter. It's like sharing a mandazi among four people. At this table. We have different shapes here: circles and rectangles. For each shape, it shows how many parts it's divided into, how many parts are shaded, and the fraction that represents the shaded part. This is how shapes help us see fractions.
Excellent work today, class! We've covered so much about fractions. First, we remember that a fraction is simply a part of a whole. It's a way to talk about pieces of something, like a piece of a delicious chapati. Every fraction has two important parts: the numerator and the denominator. The top number, the numerator, tells you the parts you have. The bottom number, the denominator, tells you the total equal parts the whole is divided into. We learned special names for fractions with denominators of 2, 3, and 4: halves, thirds, and quarters. Cutting something into two equal parts gives halves, three parts give thirds, and four parts give quarters. We can compare them! At this. One-half is greater than one-quarter. That makes sense, right? If you split a chapati into two pieces, each piece is bigger than if you split it into four pieces. The best part is that fractions are not just for classwork. We use them every single day! When you share mandazi with a friend, you're using fractions. Dividing sweets fairly, cutting an orange—these are all real-life fractions. Remember this final, very important point: fractions are everywhere! Keep your eyes open. I want you all to be fraction detectives and start spotting them in your daily life. I'm so proud of each and every one of you.
