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Welcome to Multiplication! – Multiplication as repeated addition – If you have 3 groups of 2 apples, that’s 3 times 2 apples! – Visualizing with number lines – A number line shows this by having 3 jumps of 2 spaces each. – Writing multiplication sentences – Turn ‘3 groups of 2’ into ‘3 x 2’ to show multiplication. – Practice with examples | This slide introduces the concept of multiplication as a form of repeated addition, which is a foundational understanding for third graders. Use examples that are relatable, such as groups of apples, to illustrate the point. Show how a number line can be used to visualize these groups as jumps of equal spaces, reinforcing the concept of equal groups in multiplication. Teach students how to write these visual representations as multiplication sentences, such as turning ‘3 groups of 2 apples’ into the multiplication sentence ‘3 x 2’. Provide practice examples for students to try on their own, using number lines to help them visualize the multiplication process.

Understanding Multiplication – Multiplication as repeated addition – It’s like adding the same number over and over. – Example: 3 times 2 – Like 2 + 2 + 2. We can write this as 3 x 2. – A quicker addition method – Instead of adding 2 three times, we multiply 3 by 2. | This slide introduces the concept of multiplication to third-grade students as a form of repeated addition, which is a foundational building block for understanding multiplication. Start by explaining that multiplication is simply adding the same number multiple times. Use the example of 3 times 2 to show that instead of writing 2 + 2 + 2, we can write 3 x 2, which tells us to add the number 2 together three times. Emphasize that multiplication is a shortcut for addition when dealing with multiple groups of the same number. Encourage students to think of multiplication as a faster way to add and have them practice with different numbers to solidify their understanding.

Number Lines and Multiplication – Number lines explain multiplication – Imagine hopping along points on a line, each hop is a count – Each jump equals a number added – If we hop by 2’s, each jump is adding 2 – Multiple jumps mean repeated addition – Hopping by 2’s five times shows 2+2+2+2+2 – Repeated addition is multiplication – This is the same as 5 times 2, or 5×2! | This slide introduces the concept of multiplication using number lines, a visual tool that helps students understand multiplication as repeated addition. Start by explaining that a number line is a straight path with numbers placed at equal intervals. Each move or ‘jump’ to the right increases the value by the number we are adding. Show that making the same jump several times is like adding the same number over and over, which is the basis of multiplication. For example, if we jump by 2’s on a number line five times, we are essentially adding 2 five times, which can be written as 5×2. This helps students visualize multiplication and prepares them for writing multiplication sentences based on number line models.

Writing Multiplication Sentences – Parts of a multiplication sentence – Multiplier, multiplicand, product e.g., 3 parts in 4 x 2 = 8 – Example: 4 x 2 = 8 – 4 groups of 2 equals 8 – Visualize with number lines – Use lines to show repeated addition – Practice creating sentences – Find examples in homework | This slide introduces students to the structure of multiplication sentences, which is a foundational concept in understanding multiplication. Start by explaining the terms: multiplier (the number of groups), multiplicand (the size of each group), and product (the total amount). Use the example 4 x 2 = 8 to show how multiplication represents repeated addition (4 groups of 2). Then, demonstrate how to represent this on a number line, showing that each hop on the line represents adding another group. Encourage students to draw their own number lines and write corresponding multiplication sentences for practice. For homework, ask them to find objects at home that can be grouped and write multiplication sentences for them.

Let’s Practice Multiplication on Number Lines! – Observe the number line on the board – Mark equal jumps together – Each jump represents a ‘times’ or multiplication – Write the matching multiplication sentence – For example, if we jump by 2’s five times, we write 2 x 5 – Everyone gets a turn to practice | This interactive slide is for a classroom activity where students will engage with the concept of multiplication using a number line drawn on the board. Start by explaining that each jump on the number line represents a multiplication fact. Demonstrate by marking equal jumps on the number line and then writing the corresponding multiplication sentence. For instance, if you make 4 jumps of 3, the multiplication sentence is 3 x 4. After the demonstration, invite each student to come up to the board to mark their own jumps and write a multiplication sentence. This hands-on activity helps solidify the concept of multiplication as repeated addition and gives students the opportunity to visualize the process. Provide guidance and positive reinforcement as they work through the exercise.

Your Turn: Multiplication Number Lines – Draw your own number line – Make equal jumps on the line – For example, 5 jumps of 2 each – Write a multiplication sentence – Like 5 x 2 = 10 for 5 jumps of 2 – Share with the class! | This slide is an interactive class activity designed to help students apply their understanding of multiplication using number lines. Students should be encouraged to draw a number line on a piece of paper and make equal jumps to represent multiplication. For instance, if they make 5 jumps of 2 units each, they should write the multiplication sentence 5 x 2 = 10. After completing their number lines and sentences, students will have the opportunity to share their work with the class, fostering a collaborative learning environment. The teacher should circulate the room, offering guidance and ensuring that each student understands the concept of equal jumps correlating to multiplication. Possible variations for different students could include using different numbers of jumps or different sizes of jumps to represent various multiplication sentences.

Class Activity: Multiplication Number Line Race – Teams race to write multiplication sentences – Each team gets a unique number line – First team to finish wins a prize – Understand multiplication with fun – Visualize multiplication as repeated addition on number lines | This activity is designed to help students understand multiplication through the use of number lines, which visually represent the concept as repeated addition. Divide the class into small teams and provide each team with a number line that has different intervals marked. Students will use these intervals to write multiplication sentences that correspond to the jumps on the number line. For example, if a number line shows jumps of 3 from 0 to 15, the multiplication sentence would be 5 x 3 = 15. The first team to correctly complete their number line sentences wins a small prize. This encourages teamwork, quick thinking, and application of multiplication concepts. Possible variations for different teams could include number lines with larger numbers, smaller intervals, or starting at different points on the line to cater to different skill levels.

Conclusion & Homework: Multiplication Mastery – Congrats on learning number line multiplication! – Complete the worksheet for practice – Use the skills you’ve learned today – Each problem helps you improve – Remember, every problem is a step towards mastering multiplication – Keep practicing for perfection! | Well done on guiding the students through writing multiplication sentences using number lines! For homework, students are provided with a worksheet that includes a variety of number line multiplication problems to reinforce today’s lesson. Remind them that consistent practice is key to becoming proficient in multiplication. Encourage them to approach each problem methodically, using the techniques they’ve learned in class. Offer support for any students who may need extra help and remind them that it’s okay to make mistakes as long as they learn from them. The goal is to build confidence and skill in using number lines for multiplication.