Math: More Adding and Subtracting

Suggested Time Frame: 18 Instructional Days

        

Focus TEKS

Adding and Subtracting – Using Place Value

  • 1.3A  Use concrete and pictorial models to determine the sum of a multiple of ten and a one-digit number in problems up to 99
  • 1.5C  Use relationships to determine the number that is 10 more and 10 less than a given number up to 120

Adding and Subtracting – Computation

  • 1.3D Apply basic fact strategies to add and subtract within 20, including making 10 and decomposing a number leading to a 10
  • 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

Adding and Subtracting – 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

Adding and Subtracting – 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
  • 1.5E  Understand that the equal sign represents a relationship where expressions on each side of the equal sign represent the same value(s)
Numeracy TEKS

Counting Patterns and Quantities (Suggested: 6 days)

  • 1.4A  Identify U.S. coins including pennies, nickels, dimes and quarters by value and describe the relationships between them
  • 1.4B Write a number with the cent symbol to describe the value of a coin
  • 1.4C  Use relationships to count by twos, fives, and tens- to determine the value of a collection of pennies, nickels and/or dimes
  • 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;
  • 1.5C  Use relationships to determine the number that is 10 more and 10 less than a given number up to 120

Developing Strategies for Adding and Subtracting (Suggested: 10 days)

  • 1.3D Apply basic fact strategies to add and subtract within 20, including making 10 and decomposing a number leading to a 10
  • 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
Spiral Review TEKS

Revisiting Shapes and Fair Shares (Suggested: 8 days)

  • 1.6A  Classify and sort regular and irregular two-dimensional shapes based on attributes using informal geometric language
  • 1.6B Distinguish between attributes that define a two-dimensional or three-dimensional figure and attributes that do not define the shape
  • 1.6C  Create two-dimensional figures, including circles, triangles, rectangles, and squares as special rectangles, rhombuses, and hexagons
  • 1.6D Identify two-dimensional shapes, including circles, triangles, rectangles, and squares as special rectangles, rhombuses, and hexagons, and describe their attributes using formal geometric language
  • 1.6E Identify three-dimensional solids, including spheres, cones, cylinders, rectangular prisms [including cubes], and triangular prisms, and describe their attributes using formal geometric language
  • 1.6F  Compose two-dimensional shapes by joining two, three, or four figures to produce a target shape in more than one way if possible
  • 1.6G  Partition two-dimensional figures into two and four fair shares or equal parts and describe the parts using words
  • 1.6H  Identify examples and non-examples of halves and fourths

Measuring Length (Suggested: 8 days)

  • 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 measurements differ
  • 1.7D  Describe a length to the nearest whole unit using a number and a unit

Counting Quantities (Suggested: 2 days, using both numeracy and spiral review time)

  • 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;
  • Counting Coins (Make this the focus on 1 day of Counting Collections)

    • 1.4A  Identify U.S. coins including pennies, nickels, dimes and quarters by value and describe the relationships between them
    • 1.4B Write a number with the cent symbol to describe the value of a coin
    • 1.4C  Use relationships to count by twos, fives, and tens- to determine the value of a collection of pennies, nickels and/or dimes

Telling Time (Ongoing)

  • 1.7E  Tell time to the hour and half hour using analog and digital clocks