The adjustment to the whole group lesson is a modification to differentiate for children who are English learners.
Show students a domino. Write the two numbers that the domino shows on the board.
Now add up the two numbers and write the sum on the board.
Ask students to come up with a number sentence that fits this domino.
Instruct students to read the equation chorally, "________ plus ________ equals ________" as you point below the equation.
Review left and right with gestures, and have students identify the number of dots in each part using the sentence frames, "There are ________ dots on the left side" and "There are ________ dots on the right side."
Tell students that the domino is divided in half, and choose student volunteers to explain what that means.
Ask students to share with a partner examples of other things that are divided in half, such as a sandwich.