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Students will be able to show addition problems using M&M's as objects.
- Begin the lesson by discussing addition. Potential questions include: What does it mean to add? How do we add? What is an example of adding? Make sure to mention that when they add, the students are making one number bigger by joining two or more numbers.
- Ask your students what equal means. Remind them that when two numbers are equal, they are the same. Tell them that when adding two numbers together, the result is the sum.
- Read The M&M's Addition Book by Barbara Barbieri McGrath.
- Review the numbers one to 20 with students by seating students in circle. Pass an item such as a stuffed animal around the circle and instruct students to say the next number in the counting sequence when it is their turn.
- Point to each number on a number line as students say the number name.
- Create an anchor chart of math vocabulary such as add, plus sign, equal sign, and sum. Allow students to come up and add examples of the terms and symbols to the chart.
Explicit Instruction/Teacher modeling(10 minutes)
- Review how in the book, M&M's were added together to make new numbers.
- Distribute the same number of M&M's to every student, and make sure there are enough for every student to add numbers up to 20.
- Direct your students to separate the M&M's by color. Make sure that they don't eat any until after the activity has been completed.
- With a whiteboard or projector, show different examples of number statements using different colored M&M's. For example, if a student has two green M&M's and 3 red M&M's, he could write: 2 green + 3 red = 5 M&M's.
- Ask students to tell you which math symbol means ""to add."" Instruct them to form a plus sign with their arms as they repeat after you, "plus sign."
- Instruct students to follow along with their candy as you model solving a few addition problems.
- Brainstorm different addition strategies, such as drawing a picture or counting forward on the number line. List the strategies on a chart for reference. Tell students that today they will use real objects, M&Ms, to add.
Guided Practice(15 minutes)
- Pass out paper, pencils, and candy to each student.
- Have your students work in partners to help keep one another on track.
- Ask your students to come up with as many different examples as they can. For example, if a student has 25 M&M's total, encourage her to come up with five or more number statements, such as 3 blue + 8 red = 11 M&M's, 10 yellow + 12 brown = 22 M&M's.
- Create an anchor chart that includes the different colors found in the candy for reference as students write their number statements. Write ""red"" with a red marker, etc.
- Structure the partner work time by telling students to take turns. One partner says a number statement and writes it on the paper. The other partner builds the number statement with M&Ms and solves. Then switch roles.
Independent working time(5 minutes)
- Have your students create three number sentences independently. Encourage them to create new number statements that they haven't made yet.
- Have them lay out different number sentences on their papers before writing them down. This way, they can visualize the numbers before writing.
- Review the steps for the activity: 1) Show a number statement with M&Ms. 2) Write a number statement on the paper. 3) Count the M&Ms to solve the equation.
- Circulate and assist individual students. Observe that all students understand the activity and are actively engaging. Reteach the instructions for the activity as needed.
- Ask students to verbalize the steps to add using M&Ms.
- Enrichment: Students who understand the concept may use more than two colors in their number sentences. Or, encourage students to use more than 10 of one color.
- Support: For students who need more support, have them move the M&M's as they are counting them.
- Walk around the room to check on the students' number statements. Make sure they are correct and labeled.
- Observe that students are able to model an addition problem using M&Ms.
- Check that the equations match the number of M&Ms.
- Encourage students to describe the steps they followed to write an equation to a partner.
- If students do not add correctly ask them to explain their thinking. Encourage the self-correction of errors rather than rushing to provide a correct answer.
Review and closing(5 minutes)
- Have the class share some of their number sentences they came up with during independent work time.
- Allow the class to eat their treats.
- Ask students how many M&Ms they have after they have eaten them all (zero!). Remind them that zero means ""none.""
- Instruct students to share the steps to solve their example problems using transitional words such as first, next, then and last.