Turquoise Bunk • Grades 2–3 • Lesson 4 Leader’s Guide
LESSON 4
Standards
Math Practices
Lesson Objectives
Partition Shapes Into Halves, Thirds, and Fourths
• Partition circles and rectangles into equal parts. • Describe equal parts as halves, thirds, or fourths.
2.G.3; ELD-MA.2- 3.E.E
MP.3 Construct viable arguments and critique the reasoning of others. MP.7 Look for and make use of structure.
Lesson Overview Lessons follow a consistent structure, listing the standards, math practice, and objectives. The lesson’s key strength is identified, setting the stage for learning.
Campers will develop a sense of belonging to the MathCamp community. This sense will deepen
MATERIALS FOR THE DAY
Download and Print • L4 Math Camper Resources • L4 Community Math Resources
Classroom Materials • dry-erase markers • plastic sleeves • rulers or straightedges • scissors
as they make friends and feel seen and valued by others. Campers will make others feel welcome too.
OPENING CAMPFIRE 15 MIN
Opening Campfire Campers gather while the leader sets the purpose for the day’s lesson.
Greet your campers by name. Have them put away their personal items and gather in a common area. Lead campers in a round of the “MathCamp Heroes Cheer.” Campers, today we’re going to explore how we can decompose a shape to show halves, thirds, and fourths. Turn and share with a partner what you remember about decomposing a shape. Invite one or two campers to share their ideas. We’re also going to work on developing a sense of belonging in our classroom community. When we feel like we belong, we have friends and people we like to be around. We are safe, and make others feel safe, asking questions or offering ideas. Turn and share with a partner something that makes you feel like you belong with your friends. Ask one or two campers to share.
WORDS OF THE DAY Review and add these words to your vocabulary wall. Encourage campers to use them in their discussions. NEW REVIEW partition: to break a shape into equal parts
MULTILINGUAL LEARNERS Show campers how to “partition” their hands into individual fingers. Then have campers draw a face and identify the parts. Ask: What else can we partition or break into equal parts? Encourage them to find ways to use the new vocabulary words in the lesson.
third: the name of each part when a shape is divided into three equal parts fourth: the name of each part when a shape is divided into four equal parts
divide: to split a shape or quantity into equal parts or groups
FLASH MATH 5 MIN Start the day with a quick fluency routine to warm up campers’ math thinking. These engaging and fun activities support campers’ number sense and fluency, building competence and confidence! You’ll find the routines and instructions for how to do them in the back of this Leader’s Guide.
Lesson 4 Unit: Belonging | 37
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2/1/24 3:20 PM
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