Math: Introducing Unitizing

Suggested Time Frame: 15 Instructional Days

        

Focus TEKS

Unitizing

  • 1.1D communicate mathematical ideas, reasoning, and their implications using multiple representations, including symbols, diagrams, graphs, and language as appropriate;
  • 1.1E create and use representations to organize, record, and communicate mathematical ideas;
  • 1.1F analyze mathematical relationships to connect and communicate mathematical ideas;
  • 1.1G display, explain, and justify mathematical ideas and arguments using precise mathematical language in written or oral communication.
  • 1.2B  Use concrete and pictorial models to compose and decompose numbers up to 120 [up to 99 in this unit] in more than one way as so many hundreds, so many tens, and so many ones
Numeracy TEKS

Counting Patterns and Quantities (Suggested: 4 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
  • 1.5C  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: 8 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: 12 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

Counting Quantities (Suggested: 3 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