Wayne RESA

Unit PlannerEDM4 Math 1

Wayne Resa - Math / Grade 1 / Mathematics / EDM4 Math 1 / Week 25 - Week 28
2 Curriculum Developers
Unit Abstract

In this unit, children explore the relationship between addition and subtraction, compare different subtraction strategies and continue to work on fact fluency. They also explore the defining and non-defining attributes of 2-dimensional shapes. The following big ideas will be covered in this unit:

-Subtraction is an unknown addend problem. (Think Addition)

- The defining attributes of shapes are always present features that classify a particular object.

- The non-defining attributes are features that may be present, but do not identify what the shape is called.

- Some shapes have sides, angles, and faces which can be counted.

-An analog and digital clock can be used to tell time to the nearest half hour.

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Expectations/Standards
MI: Mathematics
MI: Grade 1
Operations & Algebraic Thinking
1.OA.A. Represent and solve problems involving addition and subtraction.
1.OA.A.1. Use addition and subtraction within 20 to solve word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem.
1.OA.B. Understand and apply properties of operations and the relationship between addition and subtraction.
1.OA.C. Add and subtract within 20.
1.OA.C.5. Relate counting to addition and subtraction (e.g., by counting on 2 to add 2).
1.OA.C.6. Add and subtract within 20, demonstrating fluency for addition and subtraction within 10. Use strategies such as counting on; making ten (e.g., 8 + 6 = 8 + 2 + 4 = 10 + 4 = 14); decomposing a number leading to a ten (e.g., 13 – 4 = 13 – 3 – 1 = 10 – 1 = 9); using the relationship between addition and subtraction (e.g., knowing that 8 + 4 = 12, one knows 12 – 8 = 4); and creating equivalent but easier or known sums (e.g., adding 6 + 7 by creating the known equivalent 6 + 6 + 1 = 12 + 1 = 13).
1.OA.D. Work with addition and subtraction equations.
Measurement & Data
1.MD.B. Tell and write time.
1.MD.B.3. Tell and write time in hours and half-hours using analog and digital clocks.
Geometry
1.G.A. Reason with shapes and their attributes.
1.G.A.1. Distinguish between defining attributes (e.g., triangles are closed and three-sided) versus non-defining attributes (e.g., color, orientation, overall size) ; build and draw shapes to possess defining attributes.
© Copyright 2010. National Governors Association Center for Best Practices and Council of Chief State School Officers. All rights reserved.
Practice Standards

Students will have opportunities to:

  • Look for mathematical structures such as categories, patterns and properties. (MP.7)
  • Use structures to solve problems and answer questions. (MP.7)
  • Create and justify rules, shortcuts and generalizations. (MP.8)
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Concepts from Previous Units

- Known facts can be used to determine unknown facts. (doubles & combinations of tens)

- Combinations of 10 are all of the different ways to make 10.

- Both of the amounts in a double addition fact are the same.

From Kindergarten:

- Shapes help us describe, represent, and make sense of our world.
- The attributes of shapes make them alike or different.

- Shapes have sides and angles, which can be counted and compared.

- Triangles, rectangles, squares and circles can be defined based on their attributes.

Connections to Upcoming Units

-Some shapes are flat (2-D) while other shapes are solid (3-D).

-Smaller shapes can be used to compose larger shapes and larger shapes can be decomposed into smaller shapes.

-Composite shapes are made using two or more shapes.

-Partitioning the whole can be thought of as cutting or splitting an amount equally.

-Fractional parts are equal shares or equal-sized portions of a whole.

-Fractional parts have special names that tell how many parts of that size are needed to make the whole. For example, fourths require four parts to make a whole.

-The more fractional parts required to make a whole, the smaller the parts. For example, fourths are smaller than halves.

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Key Terms / Vocabulary

attribute, clockwise, closed, defining attribute, digital clock, fact family, minute hand, non-defining attribute, function machine, open, polygon, rule, subtraction fact, think addition, vertex, unknown, pattern, addend, difference, sum, rectangle, triangle, square, sort, category, amount, missing number, double, ten, time

Bold: Listed in teacher's EDM4 edition

Normal Font: not listed in teacher’s edition as a vocabulary word but will be helpful for students in explanations

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Lesson Plan Sequence

The following lesson plan sequence is obtained from Everyday Mathematics 4. Each lesson is aligned with a learning objective to inform the teachers on what students should be able to at the end of the lesson. The student objective informs the students of their learning goals for the day and it should be reviewed before, during and at the end of the lesson. Each lesson includes a mathematics task that should be implemented to meet the learning objectives. Teachers can select from the practice opportunities to reinforce the learning goals of the day.

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Language Support

The following language supports are for English Language Learners but could also be used to support any struggling learner in mathematics. The strategies are obtained from the SIOP model. The language objectives will support students' academic language development. The sentence stems and starters provides the support many students need to be able to participate in discussions and writing about mathematics.

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