Combining Foods
http://illuminations.nctm.org/LessonDetail.aspx?ID=L64
A lesson plan for Grades K–2 Mathematics
In this lesson, the fourth of a six-part unit from Illuminations titled “Food Pyramid Power,” students explore addition and comparison subtraction by modeling and recording related addition and subtraction facts for a given number. The students also investigate the commutative property and model fact families, including those in which one addend is zero and those in which the addends are alike.
North Carolina Curriculum Alignment
Mathematics (2004)
Grade 1
- Goal 1: Number and Operations - The learner will read, write, and model whole numbers through 99 and compute with whole numbers.
- Objective 1.01: Develop number sense for whole numbers through 99.
- Connect the model, number word, and number using a variety of representations.
- Use efficient strategies to count the number of objects in a set.
- Read and write numbers.
- Compare and order sets and numbers.
- Build understanding of place value (ones, tens).
- Estimate quantities fewer than or equal to 100.
- Recognize equivalence in sets and numbers 1-99.
- Objective 1.02: Use groupings of 2's, 5's, and 10's with models and pictures to count collections of objects.
- Objective 1.03: Develop fluency with single-digit addition and corresponding differences using strategies such as modeling, composing and decomposing quantities, using doubles, and making tens.
- Objective 1.04: Create, model, and solve problems that use addition, subtraction, and fair shares (between two or three).
- Objective 1.01: Develop number sense for whole numbers through 99.
Grade 2
- Goal 1: Number and Operations - The learner will read, write, model, and compute with whole numbers through 999.
- Objective 1.01: Develop number sense for whole numbers through 999.
- Connect model, number word, and number using a variety of representations.
- Read and write numbers.
- Compare and order.
- Rename.
- Estimate.
- Use a variety of models to build understanding of place value (ones, tens, hundreds).
- Objective 1.02: Use area or region models and set models of fractions to explore part-whole relationships in contexts.
- Represent fractions (halves, thirds, fourths) concretely and symbolically.
- Compare fractions (halves, thirds, fourths) using models.
- Make different representations of the same fraction.
- Combine fractions to describe parts of a whole.
- Objective 1.03: Create, model, and solve problems that involve addition, subtraction, equal grouping, and division into halves, thirds, and fourths (record in fraction form).
- Objective 1.04: Develop fluency with multi-digit addition and subtraction through 999 using multiple strategies.
- Strategies for adding and subtracting numbers.
- Estimation of sums and differences in appropriate situations.
- Relationships between operations.
- Objective 1.05: Create and solve problems using strategies such as modeling, composing and decomposing quantities, using doubles, and making tens and hundreds.
- Objective 1.06: Define and recognize odd and even numbers.
- Objective 1.01: Develop number sense for whole numbers through 999.
Kindergarten
- Goal 1: Number and Operations - The learner will recognize, model, and write whole numbers through 30.
- Objective 1.01: Develop number sense for whole numbers through 30.
- Connect model, number word (orally), and number, using a variety of representations.
- Count objects in a set.
- Read and write numerals.
- Compare and order sets and numbers.
- Use ordinals (1st-10th).
- Estimate quantities fewer than or equal to 10.
- Recognize equivalence in sets and numbers 1-10.
- Objective 1.03: Solve problems and share solutions to problems in small groups.
- Objective 1.01: Develop number sense for whole numbers through 30.



