Addition with Arrays - Part 1 - Lesson for Grade 2, Chapter - Equal Groups
In the lesson "Addition with Arrays - Part 1", Grade 2 students will embark on an engaging journey to understand the concept of addition through the use of arrays. This lesson falls under the chapter "Equal Groups", which is a part of the unit "Applications in Operations Within 1000". Students will learn how to visualize and solve addition problems by arranging objects in rows and columns, thereby forming arrays. This method introduces students to the foundational concept of repeated addition, paving the way for understanding multiplication in future grades.
The activities designed for this lesson, including "Repeated Addition with Arrays", "Arrays and Equations Worksheet", "Schoolbag Arrays Worksheet", "Easter Arrays Worksheet", and "Arrays and Matching Arrays to Addition Equations", will equip students with the skills to convert visual arrays into addition equations. Such exercises not only enhance their ability to perform addition within 1000 but also improve their problem-solving skills, critical thinking, and understanding of mathematical concepts in a fun and interactive manner.
Understanding how to use arrays for addition is crucial as it strengthens students' number sense, aids in the conceptual grasp of multiplication, and forms a basis for more complex arithmetic operations.
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Activity 1 / Repeated Addition with Arrays
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Activity 2 / Arrays and Equations Worksheet
An array is a group of objects, pictures, or numbers in columns and rows. An array can be interpreted in two ways, and you can teach your kids those two ways with this colorful, fun worksheet. First, an array can be represented in terms of rows, as shown in the picture. That is, 3 rows in 4 places make 12. Or, an array can be represented in terms of columns, as also shown in the picture. For example, 4 columns in 3 places make 12. Note that both cases always amount to the same sum. Now, help your child trace on the dotted lines from the number sentences to the cars that match.
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Activity 3 / Schoolbag Arrays Worksheet
An array can be represented in terms of rows or columns. Can your child easily differentiate between rows and columns? You can use this simple worksheet to see how well they understand the concept of arrays. In this printout, your child’s task is simple enough – check all the arrays that match the equation 5+5+5=15. Help your child count the objects in each group. Then, ask them which arrays have 15 objects in them. Tell them to check the boxes underneath the correct arrays.
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Activity 4 / Easter Arrays Worksheet
How much does your child look forward to the Easter holidays? Do they enjoy the activities and traditions that come up during the holiday? Perhaps they are especially fond of the Easter bunny and the Easter egg hunts. If they are, they would get a good kick out of this worksheet exercise. Look through the page with your child. Help them check the 2 equations for each array. Then, circle the correct sum.
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Activity 5 / Arrays and Matching Arrays to Addition Equations - Quiz
This quiz assesses students’ ability to identify arrays and connect them to addition equations.
