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Welcome to Addition! – Learn a fun way to add numbers – ‘Add by Counting On’ method – Start from one number and count up to the other – Why addition is useful – Helps solve problems quickly – Applying addition in daily life – Use addition for tasks like counting money or objects | This slide introduces the concept of addition to second graders by presenting it as a fun and essential skill. Begin by engaging students with the excitement of learning a new method called ‘Add by Counting On,’ where they start with the bigger number and count up. Emphasize the importance of addition in math for solving various problems efficiently and in everyday life for practical tasks such as counting money, objects, or even keeping track of time. Encourage students to think of examples where they have used addition outside of school. The goal is to make them understand that addition is not just a math skill but a valuable tool they use without even realizing it.

Counting On: Adding Numbers Up to 20 – ‘Counting on’ explained – Begin at one number, then add to it step by step – Example: Start at 5, add 3 – If we have 5 and count on 3 (5…6, 7, 8), we land on 8 – Practice with a number line – Visualize adding steps on the number line – Interactive class activity | This slide introduces the concept of ‘counting on,’ a fundamental addition strategy for second graders. Begin by explaining that ‘counting on’ means starting with a number and adding to it one by one. Use an example to illustrate this, such as starting at 5 and ‘counting on’ 3 more to reach 8. Demonstrate this concept using a number line, which provides a visual aid for students to understand the addition process. Engage the class with an interactive activity where each student practices ‘counting on’ using a number line. This hands-on approach reinforces the concept and helps students become comfortable with adding numbers up to 20.

Counting On in Action: Adding Numbers – Use fingers to count from a number – Start counting from any number, not just 1 – Practice: Begin at 4, then add 2 more – Show 4 fingers, then add 2 more fingers to count 6 – Counting on with objects or fingers – Use pencils or blocks to count on | This slide is designed to teach second-grade students the ‘counting on’ strategy for addition, which is a fundamental skill in developing mental math abilities. Encourage students to use their fingers or objects like pencils or blocks to physically count on from a given number. This tactile approach helps solidify the concept of addition as ‘adding on’ to an existing number. During the practice activity, guide them to start with four fingers raised and then count on two more to reach six. This reinforces the idea that counting on can start from any number, not just one. The slide aims to make students comfortable with this technique, preparing them for more complex addition problems.

Adding with Objects: Counting On – Visualize addition with objects – Use blocks or beads to see the addition – Activity: 10 blocks for counting on – Each student receives 10 blocks to add on – Example: Start with 7, add 3 more – Show 7 blocks, then count on 3 more blocks to make 10 – Practice makes perfect | This slide introduces a hands-on activity to help second graders understand the concept of ‘counting on’ as an addition strategy. Provide each student with 10 blocks and guide them to start with a certain number of blocks, then ‘count on’ by adding more blocks one by one until they reach a new total. For example, if a student starts with 7 blocks and needs to add 3 more, they will count 8, 9, 10 as they place each new block. This visual and tactile method reinforces the concept of addition and helps students internalize the process of counting on. Encourage students to repeat the activity with different starting numbers and amounts to add on, ensuring they get ample practice with sums up to 20.

Let’s Play a Game: Counting On! – Engage in a ‘counting on’ game – Roll the dice and move forward – Start from a number and add the dice number – Practice adding numbers swiftly – Helps to improve mental addition skills – Have fun while learning math | This interactive game is designed to help second graders practice the ‘counting on’ strategy in a fun and engaging way. Each student will take turns rolling a dice. When they roll, they should start from the number they are currently on and ‘count on’ the number of spaces shown on the dice. This activity not only reinforces the concept of addition but also helps students to perform quick mental calculations. As a teacher, you can facilitate the game by ensuring each student gets a turn and by helping them if they struggle with counting on. You can also introduce variations of the game, such as using two dice to add larger numbers or incorporating a game board with specific challenges at different points.

Adding Bigger Numbers: Counting On – Counting on with numbers up to 20 – Start from the bigger number – Begin with 14, it’s more efficient – Add smaller number step by step – Say 14, count up 15, 16, until 20 – Practice with an example: 14 + 6 – Let’s try adding 6 to 14 together | This slide introduces students to the concept of ‘counting on’ as a strategy for adding larger numbers, specifically sums up to 20. Emphasize starting with the larger number and counting up from there, which is a more efficient method than starting from 1. Use the example 14 + 6 to demonstrate the process. Have students practice by counting aloud from 14 to 20, adding one number at a time. This visual and verbal activity helps solidify the concept of addition by counting on. Encourage students to use their fingers or manipulatives if needed to represent the numbers they are adding to the larger number. Prepare to guide them through several examples and ensure they understand the process before moving on to independent work.

Class Activity: Counting On Race – Team up in pairs – Start with a number – One student says a number like 7 – ‘Count on’ to add more – The other adds a number aloud, e.g., 7…8, 9, 10! – Win stickers for 5 rounds | This activity is designed to reinforce the concept of addition by counting on. Students will work in pairs to practice this skill in a fun and interactive way. One student will say a number, and their partner will ‘count on’ from that number to add another number up to 20. For example, if the first student says ‘7’, the second student might count on three more numbers to reach ’10’. They will take turns and complete five rounds of this game. The first pair to finish all five rounds correctly will win stickers. This activity encourages teamwork, quick thinking, and the practical application of addition by counting on. Make sure to monitor the pairs to ensure they are counting correctly and provide help if needed.

Review and Practice: Counting On Strategy – Review counting on method – Remember to start from the biggest number – Complete the addition worksheet – Use the problems to count on from one number to another – Ask for help anytime – Practice makes perfect – The more you practice, the better you’ll get! | This slide is aimed at reinforcing the ‘counting on’ addition strategy. Begin by reviewing the method where students start adding from the largest number and then ‘count on’ the smaller number. Provide a worksheet with a variety of addition problems that require sums up to 20. Encourage students to attempt the problems independently but remind them that asking for help is a part of the learning process. Emphasize the importance of practice in mastering this strategy. As an activity, consider pairing students to solve problems together or use manipulatives like counters or number lines to visually support the counting on process.

Conclusion & Homework: Counting On – Excellent work on addition! – Practice with your homework – Use the counting on method for sums up to 20 – Another strategy next class – Keep counting on to 20! – Try adding numbers like 7 + 5 or 8 + 4 | Today’s class focused on the ‘counting on’ strategy to add numbers up to 20. Reinforce the concept by encouraging students to practice with their homework, which will consist of various addition problems within this range. Remind them that practice is key to becoming comfortable with this method. In the next class, we will introduce a new addition strategy to expand their mathematical toolkit. The homework will help solidify today’s lesson and prepare them for the upcoming strategy. Make sure to acknowledge their hard work and progress in learning to add by counting on!