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Welcome to Subtraction! – Subtraction means taking away – Think of subtraction as ‘minus’ or ‘less’ – Start with a number, then subtract – If we have 8 apples and take away 3, how many do we have left? – Making a new number by subtracting – From 10, take away 2 to make 8 – Practice with numbers up to 10 | Greet the students and introduce the concept of subtraction as a method of ‘taking away’ one number from another. Explain that subtraction helps us find out how many are left or what number we make when we take some away. Use tangible examples like apples to illustrate the concept. Encourage the students to think of subtraction as a fun activity where they get to ‘make’ a new number by taking away from a bigger number. Provide simple subtraction problems using numbers up to 10 for the students to solve, ensuring they understand the concept of ‘less than’ and ‘minus’. The goal is to make them comfortable with basic subtraction within 10.

Understanding Subtraction – Subtraction means taking away – Like removing pieces from a puzzle – Subtract to find how many left – Example with apples – Start with 5 apples, take 2, count what’s left – Practice with numbers up to 10 – Use objects like blocks to subtract and count | This slide introduces the basic concept of subtraction to first graders. Subtraction is explained as the process of taking away from a total number, which helps determine the number of items remaining. Use everyday examples, such as apples, to illustrate this concept. Encourage students to visualize the subtraction by physically removing items and counting what is left. Provide hands-on practice with objects like blocks or counters, allowing students to subtract numbers up to 10 and reinforcing the concept through tactile learning. This approach helps solidify their understanding of subtraction as a foundational math skill.

Understanding Subtraction Symbols – The minus sign (-) means take away – Think of subtraction like taking away cookies from a jar – The equals sign (=) shows the result – It’s like saying 5 cookies minus 2 is 3 cookies left – Example: 5 – 2 = 3 – From 5 fingers, put 2 down, and count what’s left | This slide introduces the basic symbols used in subtraction: the minus sign and the equals sign. Explain to the students that the minus sign is like taking something away, and the equals sign shows us what we have after taking away. Use tangible examples like cookies or fingers to help them visualize the concept. For instance, if you have 5 cookies and someone takes 2 away, you’re left with 3 cookies. Similarly, if you hold up 5 fingers and put 2 down, you can count the remaining fingers to find the answer. Encourage the students to practice with real objects to solidify their understanding.

Making Numbers with Subtraction – Subtraction makes new numbers – When we subtract, we end up with less – Start big, then take away – Imagine you have 10 apples, and you give away 7 – Example: 10 minus 7 equals 3 – 10 – 7 = 3 shows us what we have left | This slide introduces the concept of subtraction as a means to make new numbers. It’s important to use concrete examples that first graders can understand, such as starting with a certain number of objects and taking some away. Use visual aids like counters or fingers to help them visualize the subtraction process. Encourage the students to think of subtraction as a ‘taking away’ action and to use real-life examples, such as having a certain number of toys and giving some to a friend. The example provided uses the number 10, a familiar base for young learners, and demonstrates a simple subtraction that results in the number 3. Reinforce the concept by having students practice with different starting numbers and quantities to subtract.

Let’s Practice Subtraction Together! – I’ll show you a number – We’ll subtract a smaller number together – Example: 8 – 5 equals what? – Starting from 8, count backwards 5 steps to find the answer – Remember to count backwards carefully! | This slide is designed to engage first-grade students in a subtraction activity. Display a number on the board and guide the students to subtract a smaller number from it. For example, show the number 8 and ask the class to subtract 5. Encourage the students to use their fingers or objects to count backwards from 8 to find the answer, which is 3. Remind them to count carefully and check their work. This interactive approach helps solidify their understanding of subtraction as ‘taking away’ and reinforces the concept of counting backwards. For the activity, consider having different numbers and subtraction problems for each student or pair of students to ensure everyone gets a chance to practice.

Your Turn to Try: Making Numbers with Subtraction – Start with a given number – Subtract a smaller number from it – If we have 8, what’s 8 minus 3? – Find the new number after subtracting – Use your fingers or objects to help count – It’s okay to make mistakes | This slide is an interactive activity for students to practice subtraction within 10. Provide each student with a starting number and ask them to subtract a smaller number from it. Encourage them to use their fingers, counters, or drawings to represent the subtraction problem. Remind them that making mistakes is part of learning and to try again if they get a wrong answer. Possible activities: 1) Use counters to subtract physically, 2) Draw pictures to represent subtraction, 3) Pair up students to solve problems together, 4) Use flashcards with subtraction problems, 5) Create a subtraction song to remember the steps.

Subtraction Story Time – Listen to a subtraction story – Notice things being taken away – For example, if 3 apples are taken from 10, how many are left? – Discuss what was subtracted – Understand subtraction concept – Subtraction means finding out how many are left. | This slide is designed to introduce the concept of subtraction to first graders in an engaging and relatable way through storytelling. The story should be simple and involve scenarios where characters have a certain number of items and some are taken away, allowing students to visualize the subtraction process. After listening, encourage the students to discuss what was subtracted in the story and how many items were left. This will help them to connect the concept of subtraction to real-life situations and understand that subtraction is the process of finding out ‘how many are left’ or ‘how many fewer’. The teacher should prepare a few examples of subtraction stories to read and have questions ready to facilitate the discussion post-story.

Class Activity: Subtraction Bingo – Let’s play Subtraction Bingo! – Solve subtraction problems – Use subtraction facts up to 10 – Cover the answer on your card – Find the answer on your bingo card – Shout ‘Bingo!’ for a full row – Be the first to cover a row horizontally, vertically, or diagonally | This interactive class activity is designed to help first graders practice and reinforce their subtraction skills in a fun and engaging way. Prepare bingo cards in advance with answers to subtraction problems up to 10. Explain the rules clearly, demonstrating how to solve a subtraction problem and then cover the corresponding number on the bingo card. Encourage students to solve the problems independently, providing assistance as needed. Monitor the class to ensure fair play and confirm the winning card. Possible variations of the activity could include playing for a full card, creating teams, or offering small rewards for winners. This activity not only promotes mathematical skills but also enhances listening and social interaction among students.

Mastering Subtraction: Making Numbers – Celebrate learning subtraction! – Subtraction means taking away – Like 5 – 2 is taking 2 away from 5 – Practice is key to success – The more you practice, the better you’ll get! – Keep practicing at home! – Try subtracting with toys or snacks | This slide is a conclusion to reinforce the concept of subtraction as taking away and to celebrate the students’ achievements in learning how to make numbers using subtraction up to 10. Encourage the students by acknowledging their hard work and remind them that subtraction is simply the process of taking one number away from another. Emphasize the importance of continued practice to solidify their understanding and skills. Provide suggestions for practicing at home, such as using toys or snacks to visually represent subtraction problems. This will help them relate the concept to real-life situations and make learning more engaging.