1. Topic-
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Unit 3, Unit 7
Explore and use Arrays |
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2. Content-
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CCS 3.0A.1- Interpret products of whole numbers.
CCS 3.0A.3- Use multiplication and division within 100 to solve word
problems in situations involving equal groups, arrays, and measurement
quantities, e.g., by using drawings and equations with a symbol for
the unknown number to represent the problem.
Vocabulary- array, row, column, commutative property |
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3. Goals: Aims/Outcomes-
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1.To use multiplication to represent array situations.
2. To use drawings to help solve word problems involving arrays.
3. To understand that multiplication is commutative. |
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4. Objectives-
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1. Students will write a multiplication equation to represent a
given array.
2. Students will use draw an array to represent a given equation.
3. Students will be able to explain (using words, numbers, or pictures)
the commutative property of multiplication. |
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5. Materials and Aids-
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| Connecting cubes, math journals, math textbook, handouts, Elmo,
white board. |
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6. Procedures/Methods-
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A. Introduction-
1. Show students examples of different arrays that they may see
on a daily basis.
2. Ask how these objects represent math problems?
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B. Development-
1. Begin by showing Learnzillion video titled "Multiplication and
Arrays"
2. Through direct instruction, I will explain the meaning of rows,
columns,arrays, and commutativity. They are to take notes in their
math journals.
3. Allow students to inquire about the concepts being taught.
4. I will demonstrate one of the problems represented on pg. 209-210
of the math textbook by drawing a picture and by modeling using the
connecting cubes. |
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C. Practice-
1. In order to practice what they have learned, I will pair students
up and distribute connecting cubes and handouts.
2. Together as a whole group we will do number one and two.
3. After that, students will practice the rest of the problems on
the handout (making sure that each of their examples is checked by
a teacher). |
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D. Independent Practice-
1. Students will be given a second handout of arrays in which they
must write the equations for.
2. Use "You be the Teacher" with their partner from earlier to check
their work.
3. Students will discuss similarities and differences between their
work and the work of their partner. |
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E. Accommodations (Differentiated Instruction)-
1. The connecting cubes will add on a "hands-on" approach to teaching
arrays that will be easier to understand for all.
2. If needed I will adjust the number of equations that need to be
solved. |
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F. Checking for understanding-
1. Students will draw an array in their math journal, along with
the equation it represents.
2. Students will demonstrate through a picture, drawing, or equation
the meaning of commutativity. |
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G. Closure-
| 1.Discuss importance of learning about arrays, multiplication, and
commutativity. |
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