GEMDAS: Order of Operations

Explicit Instruction/Teacher modeling

• Write an expression on the board. Example: 60 – {[4 x (7 -2)] + 23} + 32
• Use the GEMDAS acronym to work through the expression.
• Reveal the correct answer.
• Have students create a second expression.
• Use GEMDAS to work through their expression.
• Answer any questions that students have.

Guided Practice

• Using the GEMDAS Guided Practice worksheet, have students work in small groups or pairs to solve the expressions.
• Have the students follow the acronym GEMDAS as they work through each of the sections until they solve the expressions.
• Use the key to check if students have the correct answers.
• Guide students who need additional help.

Independent working time

• Using the GEMDAS Independent Practice worksheet have students use the order of operations acronym, GEMDAS, to work through each of the problems.
• Remind students that this activity is to be completed alone.
• Tell students to follow the order according to GEMDAS.
• Use the key to check student answers.