Last updated: 7/10/2025

Grade 1 Math Trimester 3

Approximately 60 days

Place Value, Comparison, Addition and Subtraction to 120

Place Value, Comparison, Addition and Subtraction to 120

Identifying, Composing and Partitioning Shapes

Time To The Hour and The Half Hour

Money: Identify, Know the Value of and Add Pennies, Nickels, Dimes, and Quarters

(1) NY-1.G.1 Distinguish between defining attributes versus non-defining attributes for a wide variety of shapes. Build and/or draw shapes to possess defining attributes.
(1) NY-1.G.2 Compose two-dimensional shapes (rectangles, squares, trapezoids, triangles, half-circles, and quarter-circles) or three-dimensional shapes (cubes, right rectangular prisms, right circular cones, and right circular cylinders) to create a composite shape, and compose new shapes from the composite shape.
(1) NY-1.G.3 Partition circles and rectangles into two and four equal shares, describe the shares using the words halves, fourths, and quarters, and use the phrases half of, fourth of, and quarter of. Describe the whole as two of, or four of the shares. Understand for these examples that decomposing into more equal shares creates smaller shares.
(1) NY-1.MD.3a Tell and write time in hours and half-hours using analog and digital clocks. Develop an understanding of common terms, such as, but not limited to, o’clock and half past.
(1) NY-1.MD.3b Recognize and identify coins (penny, nickel, dime, and quarter) and their value and use the cent symbol (¢) appropriately.
(1) NY-1.MD.3c Count a mixed collection of dimes and pennies and determine the cent value (total not to exceed 100 cents).
(1) NY-1.NBT.1 Count to 120, starting at any number less than 120. In this range, read and write numerals and represent a number of objects with a written numeral.
(1) NY-1.NBT.2 Understand that the two digits of a two-digit number represent amounts of tens and ones.
(1) NY-1.NBT.3 Compare two two-digit numbers based on meanings of the tens and ones digits, recording the results of comparisons with the symbols >, =, and <.
(1) NY-1.NBT.4 Add within 100, including
  • a two-digit number and a one-digit number,
  • a two-digit number and a multiple of 10.

Use concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.

Understand that in adding two-digit numbers, one adds tens and tens, ones and ones, and sometimes it is necessary to compose a ten.

Relate the strategy to a written representation and explain the reasoning used.
(1) NY-1.NBT.5 Given a two-digit number, mentally find 10 more or 10 less than the number, without having to count; explain the reasoning used.
(1) NY-1.NBT.6 Subtract multiples of 10 from multiples of 10 in the range 10-90 using
  • concrete models or drawings, and
  • strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.

Relate the strategy used to a written representation and explain the reasoning.
(1) NY-1.OA.1 Use addition and subtraction within 20 to solve one step word problems involving situations of adding to, taking from, putting together, taking apart, and/or comparing, with unknowns in all positions.
(1) NY-1.OA.2 Solve word problems that call for addition of three whole numbers whose sum is less than or equal to 20.
(1) NY-1.OA.5 Relate counting to addition and subtraction.
(1) NY-1.OA.6b Fluently add and subtract within 10.
(1) NY-1.OA.8 Determine the unknown whole number in an addition or subtraction equation with the unknown in all positions.

What do the hands on the clock mean?

 

What do the hands look like when we are telling time to the hour?

 

What do the hands on the clock look like when we are telling time to the half hour?

 

When using a digital clock, how do we write the time to the hour and time to the half hour?

 

How is a clock like a circle that we can divide into two parts or halves?

 

How many tens and ones are represented in a two digit number?

 

How many tens and ones are in the number 100?

 

How can two digit numbers be compared using the terms and symbols greater than (>), less than (<), or equal to (=)?

 

How do you add or subtract two digit numbers? What strategies may be used?

Addition and subtraction word problems within 20

 

Counting to 120

 

Numerals to 120

 

Place value: tens & ones, 2 digit numbers

 

Comparing two-digit numbers using the symbols <,>,or =

 

Adding two-digit numbers with 1 digit numbers

 

Adding two-digit numbers with multiples of ten 

 

Mentally find 10 more or 10 less than a given number and explain 

 

Subtract multiples of 10

 

Identify how many tens and ones are in a given number

 

 

Compare numbers using the terms and symbols greater than(>), less than(<) or equal to

 

 

Decompose a 2 digit numeral ( 89 = 80 + 9 or 70 + 19)

 

 

Add 2 two digit numerals by decomposing, composing or drawing quick tens and ones or dimes and pennies

 

 

Compose 2 and 3 dimensional shapes

 

Identify if a shape is divided into halves, quarters or fourths

 

Partition shapes into fair or equal shares ( half, quarter, or fourth)

 

Name two and three dimensional shapes

 

Determine the number of sides and vertices a 2 or a 3 dimensional shape has

 

Tell time to the hour and the half hour ( _ o'clock, _:00 and half past _, _:30)

 

Draw hands on a clock to represent time to the hour or half hour

 

Identify and name coins ( penny, nickel, dime, quarter)

 

Add groups of coins

 

Relate dimes and pennies to tens and ones

 

 

*Two dimensional shapes: circle, square, rectangle, triangle, trapezoid, parallelogram, rhombus

*Three dimensional shapes: cone, cylinder, cube, sphere, rectangular prism, pyramid

*Sides, corners or vertices, faces

 *Equal parts

 *Half, halves, half of

 *Quarters or fourths

 *Analog or digital clock

 *Hour or half hour

 *Penny, nickel, dime, quarter

 *Cents

Two dimensional shapes: circle, square, rectangle, triangle, trapezoid, parallelogram, rhombus

 

Three dimensional shapes: cone, cylinder, cube, sphere, rectangular prism, pyramid

 

Sides, corners or vertices, faces

 

Equal shares or fair shares

 

half, halves, half of

 

Quarters or fourths

 

Analog or digital clock

 

Hour or half hour

 

Penny, nickel, dime, quarter

 

Cents

  • Attributes (characteristics of an object such as color or number of sides)
  • Composite shapes (shapes composed of two or more shapes)
  • Digital clock
  • Face (two-dimensional surface of a three-dimensional solid)
  • Fourth of (shapes), fourths (1 out of 4 equal parts)
  • Half-hour (interval of time lasting 30 minutes)
  • Half of, halves (1 out of 2 equal parts)
  • Half past (expression for 30 minutes past a given hour)
  • Hour (unit for measuring time, equivalent to 60 minutes or 1/24 of a day)
  • Hour hand (component on clock tracking hours)
  • Minute (unit for measuring time, equivalent to 60 seconds or 1/60 of an hour)
  • Minute hand (component on clock tracking minutes)
  • O’clock (used to indicate time to a precise hour, with no additional minutes)
  • Quarter of (shapes) (1 out of 4 equal parts)
  • Three-dimensional shapes:
    • Cone
    • Rectangular prism
  • Two-dimensional shapes:
    • Half-circle
    • Quarter-circle
    • Rhombus (flat figure enclosed by four straight sides of the same length wherein two pairs of opposite sides are parallel)
    • Trapezoid (a quadrilateral in which at least one pair of opposite sides is parallel[1])

 Familiar Terms and Symbols[2]

  • Clock
  • Shape names (two-dimensional and three-dimensional) from Kindergarten:
    • Circle
    • Cube
    • Cylinder
    • Hexagon (flat figure enclosed by six straight sides)
    • Rectangle (flat figure enclosed by four straight sides and four right angles)
    • Sphere
    • Square (rectangle with four sides of the same length)
    • Triangle (flat figure enclosed by three straight sides)
    • <, >, = (less than, greater than, equal to)

Learning Targets

 

I can............

 

Write equations with unknowns in the change and result within addition & subtraction word problems.

 

Count to 120 (starting at any number less than 120)

 

Read & write numerals and represent a number of objects with a written numeral

 

Add

Identify the amount of tens and ones in a given number

 

Identify the amount of ones in a given number

 

Count, starting from any number, to 120

 

Represent a two digit number using quick tens and ones or dimes and pennies

 

Demonstrate an ability to compare to numbers with the terms and symbols greater than (>), less than (<), or equal to (=)

 

Demonstrate an ability to add two two-digit numbers using a strategy ( quick tens and ones, or a combination of composing and decomposing)

Mentally add ten more from a given number

 

Mentally take ten away from a given number

 

Tens and Ones

 

Two-digit number

 

Greater than

 

Less than

 

 Equal to

 

Decompose (a two-digit number)

 

Compose (a ten)

 

Compare

Students will be able to:

 

Build and draw shapes

 

State how many sides and vertices a two or three dimensional shape has

 

Use shapes to construct new objects

 

Partition circles and rectangles into halves or quarters (and fourths)

 

Partition triangles into halves or two equal parts

 

Distinguish between equal or not equal parts

 

Use the words halves, quarters, or fourths to describe how a shape has been partitioned

 

Tell and write time in hours and half hours using both a digital and an analog clock

 

Recognize and identify the penny, the nickel, the dime, and the quarter and their values

Add groups of coins

 

Add two digit numbers and understand how to make a new ten when necessary

Compare two two-digit numbers using the terms and symbols for greater than, less than, and equal to

Eureka Math Squared Materials

tens and ones

 

tens and ones charts

 

Greg Tang: Practice Basic Math Facts

http://gregtangmath.com/kakooma

Greg Tang: Identifying Tens and Ones

 

http://gregtangmath.com/placevalue

 

Ten More or Ten Less Video

https://www.youtube.com/watch?v=zau4jtSA_kY

 

Greater Than Video

https://www.youtube.com/watch?v=3qisu9NF1_0

 

Greater Than, Less Than, Equal to Video

https://www.youtube.com/watch?v=ka9zbPcqXBI

 

Adding two digit numbers without regrouping

https://www.youtube.com/watch?v=xAf-rCJ6VEc

 

Adding two numbers with regrouping, or making a ten

https://www.youtube.com/watch?v=ayFAh4VNMFA

 

2 and 3 dimensional shapes

 

clocks

 

coins

 

tens and ones

 

tens and ones charts

 

Greg Tang: Practice with Coins

http://gregtangmath.com/coinbubble

Greg Tang : Practice Addition Strategies Within 100

http://gregtangmath.com/breakapart

Greg Tang: Strategies for Adding 2 Digit Numbers

http://gregtangmath.com/includes/materials/downloads/worksheets/Add.Make10s.pdf

 

Identfying Coins

https://www.youtube.com/watch?v=MbtmucV-U2c

https://www.youtube.com/watch?v=pnXJGNo08v0

 

Shapes

https://www.youtube.com/watch?v=beTDz9HSNOM

 

Greater than, Less than, Equal to

https://www.youtube.com/watch?v=ka9zbPcqXBI

 

Interactive Clock:

https://www.visnos.com/demos/clock

 

Module 5 Assessment

Module 6 Assessment

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