TABUADA - DICA PARA MEMORIZAR A TABUADA \Prof. Gis/

Summary

In this engaging lesson, Gis teaches students how to quickly memorize multiplication tables using a practical approach. The video emphasizes the importance of memorization for faster calculations and highlights the commutative property of multiplication, which helps reduce the amount of information to memorize. Gis explains how knowing just a few key facts from each times table can drastically simplify learning. The class also includes a fun exercise involving printable cards to reinforce memorization, with helpful tips for mastering the more challenging times tables like 7, 8, and 9. Perfect for students looking to improve their math skills.

Takeaways

• 😀 Memorizing multiplication tables is essential for quick math exercises and daily activities.
• 😀 The multiplication table comes from ancient Greece, where tablets made of clay or stone were used for calculations.
• 😀 The multiplication table includes not only multiplication but also addition, subtraction, and division tables.
• 😀 Understanding multiplication concepts is crucial before memorizing the tables to improve calculations.
• 😀 The commutative property of multiplication means the order of numbers doesn't affect the result (e.g., 2 x 3 = 3 x 2).
• 😀 Some multiplication tables are easier to memorize, like the 2 and 5 times tables, while others, such as 7, 8, and 9, are more difficult.
• 😀 There are tricks and strategies to make memorizing the harder tables more manageable, such as recognizing repeated results from different multiplication orders.
• 😀 To master the 7, 8, and 9 times tables, students can leverage the commutative property to minimize the need for extra memorization.
• 😀 It’s important to understand that for some numbers, like 7, 8, and 9, learning a few key multiplications is enough to recall the entire table.
• 😀 A fun and interactive way to memorize the multiplication tables is through flashcards or games, which can be found in the free downloadable file provided in the lesson.

Q & A

Why is memorizing the multiplication tables important?

Memorizing the multiplication tables makes it easier and faster to solve math problems, especially when performing calculations involving multiplication, division, or addition. It helps in both academic and everyday situations like shopping or travel.

What is the origin of the term 'multiplication table'?

The term 'multiplication table' comes from ancient Greece, where people used clay or stone tablets to facilitate calculations in commercial transactions.

Why does the speaker mention not including the 1 and 10 times tables?

The speaker mentions that the 1 and 10 times tables are easy to memorize and already well-known, so they aren't included in the multiplication chart provided.

What is the commutative property of multiplication?

The commutative property of multiplication states that the order of the factors does not change the product. For example, 3 x 2 equals 2 x 3.

How does the commutative property help when memorizing the multiplication tables?

The commutative property allows you to memorize fewer facts, as it means that multiplying 3 x 2 is the same as 2 x 3. This eliminates the need to memorize both orders of the same multiplication.

Which multiplication tables do students typically find most difficult?

According to a poll conducted by the speaker, students generally find the 7, 8, and 9 times tables the most difficult.

What strategy does the speaker suggest to make memorizing the multiplication tables easier?

The speaker suggests focusing on memorizing fewer multiplications by taking advantage of the commutative property. By recognizing equivalent results, students can remove redundancies and make the memorization process more efficient.

How can the multiplication tables be useful outside of school?

Outside of school, the multiplication tables are useful in everyday tasks like shopping, calculating travel expenses, or handling other situations where quick arithmetic is needed.

What is the purpose of the free multiplication table file mentioned in the script?

The free multiplication table file is designed to help students memorize the multiplication tables more effectively. It provides a visual and interactive way to practice multiplication using a card game format.

How can students use the multiplication table cards for practice?

Students can cut out the multiplication cards and write the results on the back. By testing each other with the cards, students can practice and reinforce their memorization of the multiplication tables.