Activities to Teach Students Ways to Make a Number Using Addition and Subtraction – Up to 20
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Mathematics is an integral part of the school curriculum, and it starts with basic arithmetic. Addition and subtraction are the basic operations students first encounter in mathematics. These operations are necessary for all other math concepts students will eventually learn. Hence, it is crucial to develop a strong foundation for addition and subtraction. Understanding the concept of numbers is key to building proficiency in basic arithmetic. One must be able to make numbers to solve addition and subtraction problems. Here are some activities to teach students ways to make a number using addition and subtraction, up to 20.
Number bonds
Number bonds are an excellent way to teach students the relationship between numbers. A number bond is a visual representation of a number broken down into its component parts. For example, the number 7 has two parts – 3 and 4. With the help of number bonds, students learn to visualize the connections between numbers. They can understand how to break a number into its component parts. This activity can be conducted with manipulatives or visual aids. Have students use counters to complete the number bonds or draw circles and dots to represent each part.
Addition and subtraction with two dice
The game of addition and subtraction with two dice is an easy and fun way to teach addition and subtraction at home or in class. Students roll two dice and record the numbers. Then they add or subtract the two numbers depending on the teacher’s instructions. They can use manipulatives like counters or drawing aids to physically represent the addition or subtraction. For example, if they roll a 4 and a 3, they can use ten frames (a grid with two sets of five boxes) and put four counters in one set and three counters in another set. Next, they can learn to combine those numbers to make seven.
Missing addend
The missing addend activity focuses on teaching students to make a number using addition. In this activity, students are given two numbers, and they have to find the missing addend to make a given number. For example, if the teacher asks students to make ten, they can be given the numbers 6 and __ (blank). Students will then have to figure out what number goes in the blank to make ten. Students can use manipulatives or mental math to solve the problem.
Subtraction with ten frames
Another way to teach students how to make a number using subtraction is by using ten frames. Ten frames are grids with two sets of five boxes. The teacher first shows students a filled ten frame. Then, they take away some counters. Students are then asked to count the remaining counters and identify how many counters were taken away. This activity helps students understand the concept of subtraction.
Fact families
Fact families are an excellent way for students to understand the inverse relationships between addition and subtraction. In fact families, three numbers are written side by side, and students have to fill in the missing numbers. For example, if the teacher writes 3, 5, ___, and asks students to complete the fact family, the answer is 8. Students can use manipulatives to help them understand the concept of fact families.
In conclusion, mastering the art of making numbers using addition and subtraction is essential to students’ mathematical development. With these activities, students can learn and practice this important skill in an enjoyable and interactive way. These activities will help students gain a better understanding of numbers, develop their mathematical fluency, and build their confidence in solving basic math problems.