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Math: Introducing the Make Ten Addition Fact Strategy and Revisiting Equality

Suggested Time Frame: 14 Instructional Days

        

Focus TEKS

Addition – Computation

  • 1.3D  Apply basic fact strategies to add and subtract within 20, including making 10 and decomposing a number leading to a 10 [Make Ten Addition Strategy]
    • 1.2A  Recognize instantly the quantity of structured arrangements
    • 1.3C compose 10 with two or more addends with and without concrete objects
  • 1.5F  Determine the unknown whole number in an addition or subtraction equation when the unknown may be any one of the three or four terms in the equation
  • 1.5G  Apply properties of operations to add and subtract two or three numbers

Addition – Problem Solving

  • 1.3B  Use objects and pictorial models to solve word problems involving joining, separating, and comparing sets within 20 and unknowns as any one of the terms in the problem such as 2 + 4 =___; 3 +___= 7; and 5 =___– 3
  • 1.3F Generate and solve problem situations when given a number sentence involving addition or subtraction of numbers within 20

Addition – Representing and Explaining

  • 1.3E  Explain strategies used to solve addition and subtraction problems up to 20 using spoken words, objects, pictorial models, and number sentences
  • 1.5D  Represent word problems involving addition and subtraction of whole numbers up to 20 using concrete and pictorial models and number sentences

Concept of Equality

  • 1.5E  Understand that the equal sign represents a relationship where expressions on each side of the equal sign represent the same value(s)
    • 1.5F  Determine the unknown whole number in an addition or subtraction equation when the unknown may be any one of the three or four terms in the equation
Computational Fluency TEKS

Addition Fact Strategies

  • 1.3D Apply basic fact strategies to add and subtract within 20, including making 10 and decomposing a number leading to a 10 [Count On and Use Doubles addition fact strategies in this unit]

Counting Patterns

  • 1.5A Recite numbers forward and backward from any given number between 1 and 120
Spiral Review TEKS

Measuring Length and Time

  • 1.7D  Describe a length to the nearest whole unit using a number and a unit
    • 1.7A  Use [non-standard] measuring tools to measure the length of objects to reinforce the continuous nature of linear measurement
    • 1.7B  Illustrate that the length of an object is the number of same-size units of length that, when laid end-to-end with no gaps or overlaps, reach from one end of the object to the other
    • 1.7C  Measure the same object/distance with units of two different lengths and describe how and why the measurement differ
  • 1.7E  Tell time to the hour and half hour using analog and digital clocks

Counting Collections

  • 1.5A Recite numbers forward and backward from any given number between 1 and 120
  • 1.5B  Skip count by twos, fives, and tens to determine the total number of objects up to 120 in a set