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Welcome to Addition and Subtraction! – Learn to add and subtract up to 10 – We’ll practice adding numbers like 2 + 3 and subtracting numbers like 7 – 4. – Become math detectives – Use your ‘detective skills’ to find answers to math problems. – Solve number mysteries – Discover the secrets behind addition and subtraction. – Fun with counting, adding, subtracting – Games and activities to make math exciting! | This slide introduces first graders to the basic concepts of addition and subtraction within the number range of 1 to 10. The goal is to create an engaging and interactive learning experience by framing math problems as ‘mysteries’ for the students to solve, thereby enhancing their problem-solving and critical thinking skills. Encourage the students to approach these math concepts with curiosity and excitement. Activities can include using physical objects for counting, interactive whiteboard games, and group problem-solving. The teacher should be prepared to guide the students through various examples and provide positive reinforcement as they grasp the concepts.

Learning Addition: Adding Numbers Up to 10 – What is addition? – Putting together numbers to find a total – Addition makes numbers bigger – Example: Adding apples – If you have 2 apples and get 3 more, how many now? – Let’s solve an addition problem – 2 apples + 3 apples equals how many apples? | This slide introduces the concept of addition to first-grade students. Start by explaining that addition is the process of combining two or more numbers to find the total amount. Emphasize that when we add numbers, the total becomes larger. Use tangible examples like apples to illustrate the concept, as this helps young learners to visualize the process. Walk through the example problem on the slide by counting apples together, reinforcing the idea that 2 apples plus 3 apples make 5 apples. Encourage students to use their fingers or objects to practice adding numbers up to 10, fostering an interactive and engaging learning environment.

Let’s Practice Adding! – Adding means combining groups – Example: 4 + 1 balloons – Combining 4 balloons with 1 gives us 5 balloons – Your turn: 3 stars + 2 stars – Combine 3 stars with 2 and count them all – We find the total number – Adding helps us know how many items we have together | This slide is designed to engage first-grade students in a practical addition exercise. Start by explaining that addition is like putting two groups of things together to find out how many there are in total. Use the example of balloons to visually demonstrate this concept. Then, encourage the students to try adding stars on their own. Remind them that the goal is to combine the groups and count the total number of items. This activity helps to reinforce the concept of addition and provides a foundation for developing math skills. For the class activity, you can use physical objects like counters or draw pictures on the board to make the learning process interactive and fun.

Understanding Subtraction – Subtraction means taking away – Like 5 apples minus 2 apples – Numbers become smaller – Think of it as having 5 toys, and 2 are taken away – Example: 5 – 2 equals? – What’s left if you have 5 candies and eat 2? | This slide introduces the concept of subtraction to first graders. Start by explaining that subtraction is simply the process of taking away one number from another. Use tangible examples like cookies, apples, or toys to illustrate the point. Make sure to emphasize that when we subtract, the number of items we have gets smaller. Show them the example with cookies and ask the class what the answer is when we subtract 2 from 5. This will help them visualize the concept and understand that subtraction tells us what is left after something is taken away. Encourage the students to use their fingers or objects on their desks to practice subtracting numbers up to 10.

Let’s Practice Subtracting! – Understand subtraction concept – Example: 5 fish – 3 fish = 2 fish – Starting with 5 fish, if 3 swim away, we count what’s left. – Your turn: 4 wheels – 1 wheel – Imagine 4 wheels on a car; if 1 wheel rolls away, how many left? – Subtraction shows what’s left – We take away some items and see how many remain. | This slide is designed to help first graders practice the concept of subtraction by visualizing and solving simple problems. Start by explaining subtraction as ‘taking away’ and use the example of fish to show this visually. Encourage the students to visualize the example with wheels to solve the problem on their own. Emphasize that subtraction tells us the number of items left after some are taken away. During the activity, walk around the classroom to assist and ensure students understand the concept. Prepare to offer additional examples if needed and praise their efforts to build confidence.

Adding and Subtracting Together – Use both to solve problems – Example with crayons – Started with 5 crayons, gave 2 away, got 3 more – Combining addition and subtraction – 5 crayons – 2 crayons + 3 crayons shows how we mix both – Finding the total number – Add what you get, subtract what you give to find out how many you have | This slide introduces the concept of using both addition and subtraction in a single problem, which helps students understand that math problems can involve multiple steps and operations. Start with a relatable example, such as crayons, to make the concept tangible for first graders. Explain that sometimes we gain more items (addition) and sometimes we give items away (subtraction), and we can use math to keep track of what we have. Encourage students to visualize the crayons as they work through the problem, using their fingers or manipulatives to represent the crayons being added or taken away. This will help them grasp the concept of combining operations to find a total.

Math Detective Activity: Solving Number Mysteries – Find two numbers that add up – If I say 7, what numbers make 7 when added? – Find two numbers that subtract – If our number is 9, what can we subtract from it? – Use your detective skills – Share your answers with the class – Explain how you solved the mystery | This activity is designed to engage first-grade students in practicing addition and subtraction within 10 in a fun and interactive way. As the teacher, you will provide a target number, and the students will work to find pairs of numbers that add up to or subtract to that number. For example, if the target number is 7, students might say 5 and 2 for addition because 5+2=7. For subtraction, if the target number is 3, they might say 5 and 2 because 5-2=3. Encourage students to use their fingers, drawings, or physical objects to help them find the answers. Prepare to offer guidance and celebrate their discoveries. Have a few different activities ready for students who might finish early or need additional challenges, such as finding more than one pair of numbers or using word problems.

Class Activity: Exploring Number Bonds – Learn about number bonds with friends – Number bonds: splitting and combining numbers – Visual way to show how a whole number is made from two parts – Find ways to make numbers up to 10 – Use objects or drawings to show different combinations for the same number – Add and subtract to create bonds – Practice with examples: 8 is 5 + 3 and 8 is 10 – 2 | This activity is designed to help students understand the concept of number bonds, which is fundamental in learning addition and subtraction. By working in pairs or small groups, students will use physical objects or drawings to explore all the possible combinations that can make up numbers up to 10. For example, they can combine 2 and 3 to make 5, or see that 6 can be made by subtracting 4 from 10. Encourage students to communicate their findings with their peers and to recognize patterns in number bonds. Possible activities include using counters, drawing number bond diagrams, or playing number bond games. This hands-on approach will solidify their understanding of how numbers can be broken down and reassembled, which is a key skill in arithmetic.

Great Work on Addition and Subtraction! – Celebrating our learning – Adding and subtracting within 10 – We used objects and pictures to add and take away. – Practice is key to mastery – The more we practice, the better we get! – Keep practicing at home! – Try using toys or snacks to make it fun! | This slide is meant to wrap up the lesson and celebrate the students’ hard work. It’s important to reinforce the concept that practice is essential for mastering addition and subtraction within 10. Encourage the students to continue practicing at home, using everyday items as learning tools. Remind them that math can be fun and part of their daily play. Provide parents with simple and engaging activities that they can do with their children to reinforce these concepts. Acknowledge the effort the students put in during the lesson and motivate them to keep learning.