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Welcome to Multiplication: Small and Big Numbers! – Multiplication as groups of numbers – Think of multiplication as adding groups of the same size. – Multiply one-digit by teen numbers – Example: 3 x 14 is like 3 groups of 14. – Using grids to multiply – Grids help us see the groups and multiply step by step. – Multiplication: Your math superpower! – Knowing how to multiply makes math faster and easier! | This slide introduces third graders to the concept of multiplication as a method for combining multiple groups of the same size. Emphasize that multiplication is a faster way to add these groups together. Show how to use grids to break down the process of multiplying one-digit numbers by teen numbers, making it more manageable. Explain that mastering multiplication is like having a superpower in math because it allows students to solve problems more quickly and with greater confidence. Encourage students to practice with different numbers and to use grids as a visual aid to understand the concept better.

Understanding Multiplication with Grids – Multiplication: Repeated Addition – Example: 3 x 4 equals 4+4+4 – Three groups of four, or add the number four, three times – Quick Practice: Find 2 x 5 using addition – What’s 5 added to itself? Write it down! – Visualize with Grids: Draw and count – Use squares to make a grid, fill in, and count total | This slide introduces the concept of multiplication as repeated addition, which is a foundational skill in understanding two-digit multiplication. Start by explaining that multiplication is a way to add the same number multiple times quickly. Use the example 3 x 4 to show that it’s the same as adding 4 three times. Encourage the students to engage with a quick practice by thinking of repeated addition for 2 x 5. Introduce the use of grids as a visual aid to help them understand and visualize the concept. Have them draw grids and fill in the squares to represent the multiplication, then count the total number of squares to find the answer. This visual method will help solidify their understanding of multiplication as they prepare to tackle larger numbers.

Multiplying with Teen Numbers Using Grids – Teen numbers: 11 through 19 – Grids help visualize multiplication – Grids show rows and columns for easy calculation – Example: Multiply 4 x 13 using a grid – 4 rows of 13 in each, count total squares in the grid – Practice with different teen numbers – Try multiplying 4 by 14, 15, or 16 on a grid | This slide introduces third-grade students to the concept of multiplying single-digit numbers by teen numbers using visual grids. Teen numbers are those just after 10 and before 20, which can sometimes be tricky for young learners. By using grids, students can easily arrange rows and columns to represent the multiplication process visually. For example, to multiply 4 by 13, students can draw a grid with 4 rows and 13 columns, then count the total number of squares to find the product. Encourage students to practice with different teen numbers to solidify their understanding. This visual method supports the development of their multiplication skills and prepares them for more complex problems.

Let’s Practice Multiplying with Grids! – Step-by-step grid filling – We’ll learn how to fill in the grid for multiplication. – Work together: 5 x 14 – As a class, we’ll multiply 5 by 14 using the grid method. – Share your answers – Discuss our findings – We’ll talk about the different answers we all got. | This slide is designed to engage the students in a hands-on activity to practice grid multiplication. Start by explaining the grid method step-by-step, ensuring that students understand how to set up their grids. Then, as a class, work through the example of 5 x 14 on the grid, allowing students to follow along and fill in their own grids. After completing the multiplication, ask students to share their answers to ensure they’ve grasped the concept. Discuss any discrepancies in answers and clarify any misunderstandings. This activity will help solidify their understanding of multiplying one-digit numbers by teen numbers using grids. Prepare to offer additional examples if time allows and encourage students to try more problems at home.

Multiplication Tricks: Teen Numbers – Memorize basic multiplication facts – Knowing 1×1 through 10×10 helps a lot! – Tricks for multiplying by teens – When multiplying by teens, add a zero and multiply by the unit. – Observe patterns in multiplication – Multiplying by teens often ends with the same digit as the unit. – Practice with different numbers | This slide is aimed at helping third graders understand and remember multiplication facts, especially when dealing with teen numbers. Start by encouraging them to memorize the multiplication table from 1 to 10, as this is the foundation for multiplying larger numbers. Introduce tricks for teen numbers, such as adding a zero to the one-digit number and then adding the product of the one-digit number and the unit of the teen number. Highlight the pattern that often the result ends with the same digit as the unit of the teen number. Provide ample practice opportunities with different numbers to reinforce these concepts. For example, multiplying 3 by 14, first do 3×10 (which is 30), then 3×4 (which is 12), and add them together to get 42.

Class Activity: Multiplication Grid Challenge – Fill in the multiplication grids – Pair up for teamwork – Find a buddy to work with on this fun activity – Assist your partner – If your buddy gets stuck, help them figure it out – Present grids to the class – Show off your completed grids and explain how you solved them | This activity is designed to encourage collaboration and peer learning among students while practicing multiplication with grids. Provide each pair with a blank multiplication grid and have them work together to fill in the products of one-digit numbers by teen numbers. Encourage them to discuss strategies and help each other with more challenging multiplications. After completing the grids, each pair will present their work to the class, explaining their process and how they supported each other. This will not only reinforce their understanding of multiplication but also enhance their communication and teamwork skills. Possible variations of the activity could include using different grid sizes, incorporating a timed challenge, or having students create their own multiplication problems for their peers to solve.

Wrapping Up: Grid Multiplication – Excellent effort on grid multiplication! – Homework: Multiplication Grid Worksheet – Practice makes perfect! Complete the worksheet to become a multiplication whiz. – Discover more multiplication tricks next class – Get ready to learn new and exciting multiplication methods. – Keep practicing and have fun! | Today’s class focused on using grids to multiply one-digit numbers by teen numbers, which is a foundational skill in understanding two-digit multiplication. For homework, students are assigned a worksheet to reinforce what they’ve learned. This practice will help solidify their understanding of grid multiplication. In the next class, we will continue to build on these skills with more multiplication techniques. Encourage students to approach their homework with the same enthusiasm as today’s class and remind them that practice is key to mastering multiplication.