Multiplication Concept | Mathematics Grade 2 | Periwinkle

Summary

This educational video introduces the concept of multiplication through simple and engaging examples, using fish, birdhouses, and ladybirds. It demonstrates two methods of calculating totals—repeated addition and multiplication—and shows how multiplication is essentially repeated addition. The video also explains the terms involved in multiplication, such as multiplicand, multiplier, product, and factors. Through clear examples, learners are taught how to express multiplication both horizontally and vertically. By the end, the video highlights the relationship between addition and multiplication, making the learning process fun and approachable.

Takeaways

• 😀 Multiplication is a concept that can be understood through repeated addition.
• 😀 The script uses examples of fish in bowls and birds in birdhouses to explain multiplication.
• 😀 In the first example, adding five fish from four bowls results in 20 fish in total.
• 😀 Multiplication offers a more efficient way to calculate totals instead of repeated addition.
• 😀 The second method demonstrates multiplying the number of bowls by the number of fish in each bowl.
• 😀 The multiplication sentence can be written both horizontally and vertically.
• 😀 The number that is multiplied by another is called the multiplicand.
• 😀 The number by which another number is multiplied is called the multiplier.
• 😀 The result of multiplying two numbers is called the product.
• 😀 Factors are the numbers that, when multiplied, give a product. For example, 3 and 5 are factors of 15.
• 😀 The script uses another example of ladybirds on leaves, adding five ladybirds per leaf to get a total of 10, which can also be represented as 5 multiplied by 2.

Q & A

What is the main concept discussed in the video?

The main concept discussed in the video is multiplication, explaining it through real-life examples like fish bowls, bird houses, and ladybirds.

How does method one of solving the problem work?

In method one, we add the number of fish in each bowl repeatedly. For example, five fish in each of the four bowls are added together: 5 + 5 + 5 + 5 = 20.

What is the second method of finding the number of fish?

In method two, we use multiplication. We multiply the number of fish bowls (4) by the number of fish in each bowl (5). Thus, 4 times 5 equals 20.

How can we understand multiplication from the examples given in the video?

Multiplication is shown as repeated addition. For example, adding five repeatedly four times gives the same result as multiplying 4 by 5.

What is the result of adding the birds in three birdhouses?

In the case of three birdhouses with five birds in each, the total number of birds is found by adding: 5 + 5 + 5 = 15.

How do we represent the multiplication of the birds in the birdhouses?

Multiplying the number of birdhouses (3) by the number of birds per birdhouse (5), we write it as 3 times 5, which equals 15.

What are the terms used in a multiplication sentence?

In a multiplication sentence, the multiplicand is the number being multiplied, the multiplier is the number by which the multiplicand is multiplied, and the product is the result.

What are factors in multiplication?

Factors are the numbers that are multiplied together to get a product. In the example of 3 times 5, both 3 and 5 are factors of 15.

What is an example of vertical multiplication from the video?

The video mentions vertical multiplication as one of the ways to write a multiplication sentence, but it does not provide a specific numerical example. It contrasts this with horizontal multiplication.

How does the ladybird example illustrate multiplication?

The ladybird example shows that two leaves, each with five ladybirds, can be calculated either by adding (5 + 5 = 10) or by multiplying (5 times 2 = 10).