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Welcome to Subtraction! – Learn to take away using pictures – Subtraction means taking some away – If you have 5 apples and eat 2, you have 3 left. – Practice with numbers up to 10 – We’ll use pictures to subtract numbers like 7 – 4. – Aim to subtract on your own by end of class | This slide introduces the concept of subtraction to first graders using visual aids. Subtraction is explained as the process of taking away items from a group, which can be easily visualized with pictures. For example, if a picture shows 5 apples and we cross out 2, we can see that 3 apples remain. The goal for today’s lesson is for students to understand this concept with numbers up to 10. By the end of the class, students should be able to perform simple subtraction problems on their own. Encourage the students to visualize the subtraction process and ensure they understand that the number of items is decreasing. Use various pictures to illustrate subtraction problems and provide hands-on practice with physical objects if possible.

What is Subtraction? – Subtraction means taking away – Find out how many are left – Like eating some of your cookies – If you have 5 cookies and eat 2, how many do you have left? – Fewer cookies left afterwards | This slide introduces the concept of subtraction to first graders by relating it to a familiar situation – eating cookies. Subtraction is explained as the process of taking away from a total amount. To help students understand, use the example of having a certain number of cookies and then eating some, which results in having fewer cookies left. This tangible example makes the abstract concept of subtraction more concrete. Encourage students to think of other examples from their daily life where they take away items from a group and count what remains. This will help solidify their understanding of subtraction as ‘taking away’.

Subtracting with Pictures – Pictures help us subtract – Example: 10 apples minus 2 – Imagine having 10 apples, and someone takes 2 away – Cross out 2 apples – Visualize crossing out 2 of the apples in your picture – Count the remaining apples – After crossing out, count how many apples you have left | This slide introduces the concept of subtraction using visual aids, which is particularly effective for first graders. Start by explaining that pictures can make it easier to understand subtraction. Use the example of 10 apples, and show how subtracting 2 apples can be visualized by crossing out 2 of the apples in a picture. Then, guide the students to count the remaining apples to find the answer. This hands-on activity helps solidify the concept of subtraction by making it tangible and relatable. Encourage the students to draw their own pictures and practice subtracting different numbers of items. This will help them grasp the concept of ‘taking away’ in a fun and interactive way.

Let’s Practice Subtraction with Balloons! – Start with 10 balloons – Imagine 3 balloons pop – Visualize losing 3 of something fun – Cross out the popped balloons – Drawing helps us see subtraction – Count the remaining balloons – Practice counting what’s left | This slide is an interactive class activity designed to help first graders understand subtraction by visualizing and drawing. Start by asking the students to imagine having 10 balloons, which is a relatable and visual way to engage them. Then, guide them through the process of ‘subtracting’ by having them visualize 3 balloons popping. Encourage the students to draw 10 balloons and then cross out 3 to represent the popped ones. This visual aid will help them see the subtraction process. Finally, have the students count the remaining balloons to find the answer. This activity not only teaches subtraction but also reinforces counting skills. For students who finish early or need additional practice, provide more scenarios with different numbers of balloons or other objects they can draw and subtract.

Subtraction Story: Sharing Blocks – Start with 10 blocks – Friend takes 4 blocks – Draw and cross out 4 blocks – Visualize subtraction by drawing – Count the blocks left – Practice counting the remaining blocks | This slide introduces a subtraction story to help first graders visualize the concept of taking away. Begin with a scenario where the student has 10 blocks and a friend takes 4 away. Encourage the students to draw 10 blocks on paper and then cross out 4 to represent the friend taking them. This visual aid will help them understand that subtraction is the process of removing a certain number from a group. After crossing out the 4 blocks, ask the students to count how many blocks they have left to find the answer. This activity combines storytelling with a hands-on approach to make learning subtraction engaging and concrete. For the class activity, provide different scenarios or numbers of blocks to work with so each student can practice the concept individually.

Your Turn to Subtract! – Receive your subtraction worksheet – Look at the pictures of objects – Cross out the specified number – If I say ‘cross out 3 apples’, you will draw a line through 3 apples. – Count the remaining objects – After crossing out, count how many apples are left. | This slide introduces an interactive activity where students will practice subtraction using visual aids. Distribute worksheets with groups of objects, such as fruits, animals, or toys, depicted on them. Instruct the students to listen carefully as you state how many objects to subtract. They will then cross out the specified number of objects and count the remaining ones to find the answer. This hands-on activity helps to solidify the concept of subtraction by providing a visual and physical representation of ‘taking away’. Prepare to assist students who may struggle with counting or understanding the concept of crossing out objects. Have additional worksheets ready for students who finish early or for those who may need more practice.

Class Activity: Subtraction Art – Start with 10 stars on your sheet – Listen for the number to color – Color as many stars as the number Coloring the stars represents subtracting them – Count the stars left uncolored The uncolored stars are what’s left after subtraction | This activity is designed to help first graders visually understand the concept of subtraction by using art. Provide each student with a sheet that has 10 stars printed on it. As you call out a number, students will color that number of stars, which represents the stars ‘disappearing’ or being subtracted. After coloring, they will count how many stars remain uncolored, which helps them see the result of the subtraction. Possible variations for different students could include using stickers to cover stars, erasing stars if drawn with pencil, or crossing out stars with a marker. This hands-on activity not only makes learning subtraction fun but also reinforces the concept of ‘taking away’ in a tangible way.

Review and Goodbye! – Subtraction means taking away – How many are left after subtracting – If we have 5 apples and take away 2, we have 3 left. – Subtracting with pictures is fun – Using images makes it easier to see subtraction. – Great job learning subtraction! | Today’s lesson was focused on helping students understand the concept of subtraction by using pictures to visually represent the process of taking away. We learned that subtraction is not just about memorizing facts, but about understanding that it represents ‘how many are left’ or ‘what remains’ after some are taken away. By using pictures, students can concretely see the subtraction process and count the remaining items to find the answer. Celebrate the students’ efforts and progress in learning to subtract with pictures, and encourage them to practice this skill at home with their own drawings or toys to reinforce their understanding.