In this scavenger hunt lesson, students will look for rectangular arrays within their school environment. Whether it is a set of cubbies or windows, students will see that arrays are all around us.
Need extra help for EL students? Try the What Are Arrays? pre-lesson.
Need extra help for EL students? Try the What Are Arrays? pre-lesson.
Learning Objectives
Students will use addition to find the total number of objects arranged in a rectangular array.
Students will write an equation to express the total as a sum of equal addends.
The adjustment to the whole group lesson is a modification to differentiate for children who are English learners.
EL adjustments
Introduction
(10 minutes)
Pass out math journals or lined sheets of paper, and ask students if they know what an array is. Give students a few minutes to write their response, and tell them to be prepared to share with the class.
As students share responses, write down key points on the whiteboard or chart paper. For example: Arrays = rows, columns, rectangular, equal groups, addition, etc.
Write down the term array on the board or chart paper, and define it as an arrangement of objects, pictures, or numbers in columns and rows.
Have students recopy the definition in their journal or on lined paper. This will allow students to make a comparison to their initial response.
Next, draw an example of an array for students, and have them copy it in their notes.
Tell students that based on the definition of an array, they will do a school scavenger hunt to find real life examples of arrays. In addition, they will take a picture of their array, identify the rows and columns, and write and solve for a matching addition equation.
Beginning
Provide the definition of array in English and student's home language (L1) if possible.
Show students a few photographs that show arrangements of arrays in real life context.
Intermediate
Encourage students to explain what an array is in their own words.
Ask students to explain what concepts like equal groups and addition are in their own words.