In this lesson, students will learn how to add a one-digit number to a two-digit number. This will help students build upon the skills needed for regrouping larger numbers.
Students will be able to add a one-digit number to a two-digit number with regrouping.
The adjustment to the whole group lesson is a modification to differentiate for children who are English learners.
EL adjustments
Introduction
(5 minutes)
Ask two volunteers to come to the front of the classroom.
Give one student a two-digit number. Give the other student a one digit number. Instruct the students to use base-ten blocks to add their numbers together.
Have the rest of the class use base-ten blocks to model the addition problem at their desks.
Ask students to share some information. Great questions include: What is the sum of your addition problem? What strategies did you use to find the sum?
Tell students that today we're going to add two-digit numbers.
Beginning
Define vocabulary words such as: addition, sum, strategy, digit, and place value prior to the lesson in student's home language (L1) and English.
Provide students with a story in their L1 to provide context for the numbers they are going to add.
Intermediate
Instruct students to complete a think-pair-share, explaining what it means to add.
Provide students with a bilingual dictionary with important vocabulary words from the lesson (e.g. sum, strategy, digit, place value, addition).