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What does a student learn in ?

This is the year numbers start to mean something. Students learn to count to 100, write the numbers from 0 to 20, and figure out which group of objects has more and which has less. They also start adding and taking away small amounts using fingers, blocks, or drawings. By spring, they can count a pile of 20 objects, solve simple add and subtract problems within 10, and name shapes like circles, squares, and cubes.

  • Counting to 100
  • Writing numbers
  • Adding and subtracting
  • Comparing groups
  • Shapes
  • Sorting objects
Source: New Mexico New Mexico Adopted Content Standards
Year at a glance
How the year usually goes. Every school and district set their own curriculum, so treat this as a guide, not official pacing.
  1. 1

    Counting and writing numbers

    Students count out loud to 20 and beyond, and start writing the numbers 0 through 20. They learn that the last number they say is how many things are in the group.

  2. 2

    Comparing groups and shapes

    Students decide which group has more, fewer, or the same number of objects. They also name everyday shapes like circles, squares, and triangles, and describe where things sit using words like above and beside.

  3. 3

    Adding and subtracting to 10

    Students put groups together and take them apart using fingers, drawings, and small objects. They solve simple story problems and start to know addition and subtraction facts within 5 by heart.

  4. 4

    Teen numbers and measuring

    Students see that numbers like 14 are made of one ten and some extra ones. They also compare objects by length and weight, and sort items into groups to count how many are in each.

  5. 5

    Building and comparing shapes

    Students look closely at flat and solid shapes, count their sides and corners, and put smaller shapes together to make bigger ones. They build shapes with sticks, clay, and drawings.

Mastery Learning Standards
The required skills a student should display by the end of Kindergarten.
Counting and Cardinality
  • Know number names and the count sequence

    CCSS.Math.Content.K.CC.A

    Students learn the names of numbers and how to say them in order. This is the foundation for counting objects, reading numbers on a page, and understanding which number comes next.

  • Count to 100 by ones and by tens

    CCSS.Math.Content.K.CC.A.1

    Students count from 1 to 100, one number at a time, and then practice counting by tens: 10, 20, 30, all the way to 100.

  • Count forward beginning from a given number within the known sequence

    CCSS.Math.Content.K.CC.A.2

    Starting from any number, students count forward without backing up to 1 first. If given the number 5, they say 6, 7, 8 from there.

  • Write numbers from 0 to 20

    CCSS.Math.Content.K.CC.A.3

    Students write the numbers 0 through 20 and match each number to a group of objects. Zero means nothing is there, and that counts too.

  • Count to tell the number of objects

    CCSS.Math.Content.K.CC.B

    Students count a group of objects and say how many there are. They match each object to exactly one number as they count, then name the total.

  • Understand the relationship between numbers and quantities

    CCSS.Math.Content.K.CC.B.4

    Counting a group of objects means the last number said tells how many there are total. Students practice this by counting things out loud and matching each number to one object.

  • When counting objects, say the number names in the standard order, pairing each…

    CCSS.Math.Content.K.CC.B.4a

    Counting means saying one number for each object, in order, without skipping or double-counting. Students point to each item as they count so every object gets exactly one number.

  • Understand that the last number name said tells the number of objects counted

    CCSS.Math.Content.K.CC.B.4b

    The last number students say when counting a group tells how many are in that group. It doesn't matter if the objects are in a line, a pile, or counted in a different order.

  • Understand that each successive number name refers to a quantity that is one…

    CCSS.Math.Content.K.CC.B.4c

    Each new counting number is one more than the number before it. Students who count to five understand that five is one more than four, not just a word that comes next.

  • Count to answer "how many?" questions about as many as 20 things arranged in a…

    CCSS.Math.Content.K.CC.B.5

    Count a group of objects (up to 20 in a row or circle, up to 10 scattered around) and say how many there are. Students can also start with a number and count out exactly that many objects.

  • Compare numbers

    CCSS.Math.Content.K.CC.C

    Students look at two groups of objects and decide which group has more, which has fewer, or whether both groups are equal.

  • Identify whether the number of objects in one group is greater than, less than

    CCSS.Math.Content.K.CC.C.6

    Students look at two groups of objects and decide which has more, which has fewer, or whether they match. They count or line up the objects to compare.

  • Compare two numbers between 1 and 10 presented as written numerals

    CCSS.Math.Content.K.CC.C.7

    Students look at two written numbers, both between 1 and 10, and decide which is greater, which is less, or whether they are equal.

Operations and Algebraic Thinking
  • Understand addition as putting together and adding to

    CCSS.Math.Content.K.OA.A

    Addition means combining groups to find a total. Subtraction means splitting a group or taking some away. Students practice both with small numbers, using objects or fingers to see what happens when things come together or get removed.

  • Represent addition and subtraction with objects, fingers, mental images…

    CCSS.Math.Content.K.OA.A.1

    Students show adding and subtracting in different ways: acting out a story with toys, drawing pictures, counting on fingers, or writing a number sentence like 3 + 2 = 5.

  • Solve addition and subtraction word problems

    CCSS.Math.Content.K.OA.A.2

    Students solve simple stories about combining or separating small groups of things, like "3 apples plus 2 more." They use drawings or real objects to find the answer, working with numbers up to 10.

  • Decompose numbers less than or equal to 10 into pairs in more than one way…

    CCSS.Math.Content.K.OA.A.3

    Students break a number like 5 into two smaller numbers, finding more than one way to do it. They show their work by drawing pictures or writing simple equations like 5 = 2 + 3 and 5 = 4 + 1.

  • For any number from 1 to 9, find the number that makes 10 when added to the…

    CCSS.Math.Content.K.OA.A.4

    Students practice finding the missing piece that completes 10. If they have 6, they figure out they need 4 more to reach 10, using counters, drawings, or a simple number sentence.

  • Fluently add and subtract within 5

    CCSS.Math.Content.K.OA.A.5

    Students quickly and correctly add and subtract any two numbers up to 5. Think of it as knowing that 3 + 2 = 5 or 4 - 1 = 3 without stopping to count on fingers.

Number and Operations in Base Ten
  • Work with numbers 11—19 to gain foundations for place value

    CCSS.Math.Content.K.NBT.A

    Numbers 11 through 19 are introduced as a group of ten plus some leftovers. Students learn to see 14, for example, as one full ten and four extras, building the idea that position in a number carries meaning.

  • Compose and decompose numbers from 11 to 19 into ten ones and some further…

    CCSS.Math.Content.K.NBT.A.1

    Students learn that numbers like 13 or 17 are really a group of ten plus a few extras. They practice breaking those numbers apart and writing it as a simple equation, like 13 = 10 + 3.

Measurement and Data
  • Describe and compare measurable attributes

    CCSS.Math.Content.K.MD.A

    Students look at everyday objects and describe how they differ in size, weight, or length. They compare two things and say which is taller, heavier, or longer.

  • Describe measurable attributes of objects, such as length or weight

    CCSS.Math.Content.K.MD.A.1

    Students pick up an object and describe what they notice about it: how long it is, how heavy it feels, how tall it stands. One object can have more than one attribute worth naming.

  • Directly compare two objects with a measurable attribute in common, to see…

    CCSS.Math.Content.K.MD.A.2

    Students pick two objects and compare them directly, such as holding two pencils side by side to find which is longer. They say which has more or less of that quality and explain the difference.

  • Classify objects and count the number of objects in each category

    CCSS.Math.Content.K.MD.B

    Students sort a group of objects into categories (by color, shape, or size) and count how many are in each group.

  • Classify objects into given categories

    CCSS.Math.Content.K.MD.B.3

    Students sort everyday objects into groups (by color, shape, or size), count how many are in each group, and figure out which group has more.

Geometry
  • Identify and describe shapes

    CCSS.Math.Content.K.G.A

    Students name and describe everyday shapes, from flat ones like squares and triangles to solid ones like cubes and spheres. They practice spotting those shapes in the classroom and the world around them.

  • Describe objects in the environment using names of shapes

    CCSS.Math.Content.K.G.A.1

    Students name the shapes they see in the room and describe where things are, using words like above, below, beside, and next to.

  • Correctly name shapes regardless of their orientations or overall size

    CCSS.Math.Content.K.G.A.2

    A triangle is still a triangle even when it's tilted or tiny. Students learn to name shapes like circles, squares, and hexagons no matter how big they are or which way they're turned.

  • Identify shapes as two-dimensional

    CCSS.Math.Content.K.G.A.3

    Students sort shapes into two groups: flat shapes like a square drawn on paper, and solid shapes like a ball or a can that you can pick up and hold.

  • Analyze, compare, create

    CCSS.Math.Content.K.G.B

    Students sort, compare, and build shapes by looking at how many sides or corners each one has. They also put smaller shapes together to make bigger ones.

  • Analyze and compare two- and three-dimensional shapes, in different sizes and…

    CCSS.Math.Content.K.G.B.4

    Students look at shapes like squares, triangles, and boxes, then describe what makes them alike or different. They talk about things like how many sides or corners a shape has, even when the shape is big, small, or turned sideways.

  • Model shapes in the world by building shapes from components

    CCSS.Math.Content.K.G.B.5

    Students build and draw shapes using simple materials, like sticks and clay. This connects the shapes they see in the world to ones they can make with their own hands.

  • Compose simple shapes to form larger shapes

    CCSS.Math.Content.K.G.B.6

    Students put small shapes together to build a bigger one, like fitting two triangles to make a square. They learn that familiar shapes can combine in new ways.

Common Questions
  • What math should students know by the end of the year?

    Students should count to 100 by ones and tens, write numbers 0 to 20, and add and subtract within 5 without much thought. They should also name common shapes and compare two objects by size or weight.

  • How can I help my child practice counting at home?

    Count real things together. Count stairs on the way up, grapes on the plate, or socks coming out of the laundry. Ask how many after each count so the last number sticks as the total.

  • What does it mean to add and subtract within 5?

    It means students can quickly answer small problems like 2 plus 3 or 4 minus 1 without counting on their fingers every time. Practice with snacks or coins works well. Hide some, ask how many are left, then check together.

  • How should I sequence the year?

    Start with counting, one-to-one matching, and writing numbers to 10. Move into comparing groups and adding and subtracting within 5, then stretch counting to 100 and break apart teen numbers as ten and some more. Save shapes and measurement work to weave in throughout.

  • Which skills usually need the most reteaching?

    Writing numerals 0 to 20 without reversals takes the longest, and teen numbers often get confused because students hear the ones place first. Pulling teen numbers apart as ten and some more on a ten frame helps the idea stick.

  • My child can count to 30 but miscounts a pile of 12. Is that normal?

    Yes. Saying the number words in order is a different skill from matching one number to one object. Practice touching each item as it is counted, and slide counted items to the side so none get double-counted.

  • How do students learn shapes this year?

    Students name circles, squares, triangles, rectangles, hexagons, cubes, cones, cylinders, and spheres, and find them in the world. A shape hunt around the house or playground does more than a worksheet. Ask what is the same and what is different about two shapes.

  • How do I know a student is ready for first grade math?

    Look for a student who counts past 100, writes numbers to 20, compares two groups and says which has more, and solves small story problems within 10 using objects or drawings. Teen numbers should feel like ten and some extra ones.