Grade 1
  1. Numbers and Counting  1.1. Counting to 10  1.2. Counting to 20  1.3. Counting to 50  1.4. Counting to 100  1.5. Writing Numbers 1 to 10  1.6. Writing Numbers 1 to 20  1.7. Writing Numbers 1 to 50  1.8. Writing Numbers 1 to 100  1.9. Reading Numbers 1 to 10  1.10. Reading Numbers 1 to 20  1.11. Reading Numbers 1 to 50  1.12. Reading Numbers 1 to 100  1.13. Comparing Numbers  1.14. Ordering Numbers  1.15. Odd and Even Numbers  1.16. Number Patterns  1.17. Skip Counting by 2s, 5s, and 10s  1.18. Understanding Zero
  2. Basic Addition and Subtraction  2.1. Understanding Addition  2.2. Addition Facts within 10  2.3. Addition Facts within 20  2.4. Adding Zero  2.5. Adding One More  2.6. Adding Two More  2.7. Adding Three More  2.8. Adding Using Pictures  2.9. Addition Word Problems  2.10. Understanding Subtraction  2.11. Subtraction Facts within 10  2.12. Subtraction Facts within 20  2.13. Subtracting Zero  2.14. Subtracting One  2.15. Subtracting Two  2.16. Subtraction Using Pictures  2.17. Subtraction Word Problems  2.18. Introduction to Doubles Facts  2.19. Introduction to Making 10
  3. Place Value and Number Sense  3.1. Understanding Tens and Ones  3.2. Counting by Tens  3.3. Place Value within 20  3.4. Place Value within 50  3.5. Place Value within 100  3.6. Reading and Writing Two-Digit Numbers  3.7. Comparing Two-Digit Numbers  3.8. Decomposing Numbers
  4. Measurement  4.1. Length  4.1.1. Comparing Lengths  4.1.2. Measuring with Non-Standard Units  4.1.3. Using Standard Units (Inches and Centimeters) in Length  4.2. Weight  4.2.1. Comparing Weights  4.2.2. Heavy and Light Objects  4.2.3. Introduction to Grams and Pounds  4.3. Capacity  4.3.1. Comparing Capacity  4.3.2. Full and Empty  4.3.3. Introduction to Liters and Milliliters  4.4. Time  4.4.1. Telling Time to the Hour  4.4.2. Telling Time to the Half Hour  4.4.3. Days of the Week  4.4.4. Months of the Year  4.4.5. Understanding Yesterday, Today, and Tomorrow  4.5. Money  4.5.1. Recognizing Coins  4.5.2. Counting Coins  4.5.3. Introduction to Dollar and Cents Symbols  4.5.4. Simple Addition and Subtraction with Money
  5. Geometry  5.1. 2D Shapes  5.1.1. Recognizing 2D Shapes  5.1.2. Drawing 2D Shapes  5.1.3. Naming 2D Shapes  5.1.4. Properties of 2D Shapes  5.1.5. Sorting 2D Shapes  5.1.6. Composing Simple Shapes  5.2. 3D Shapes  5.2.1. Recognizing 3D Shapes  5.2.2. Naming 3D Shapes  5.2.3. Properties of 3D Shapes  5.2.4. Sorting 3D Shapes  5.3. Position and Direction  5.3.1. Left and Right  5.3.2. Above and Below  5.3.3. Inside and Outside  5.3.4. Near and Far  5.3.5. In Front and Behind
  6. Patterns and Sorting  6.1. Recognizing Patterns  6.2. Extending Patterns  6.3. Creating Patterns  6.4. Sorting by Color  6.5. Sorting by Shape  6.6. Sorting by Size
  7. Data and Graphing  7.1. Introduction to Data  7.2. Collecting Data  7.3. Tally Marks  7.4. Bar Graphs  7.5. Picture Graphs  7.6. Interpreting Simple Graphs
  8. Fractions  8.1. Understanding Halves  8.2. Understanding Fourths  8.3. Dividing Shapes into Equal Parts  8.4. Identifying Equal and Unequal Parts

Grade 1 → Patterns and Sorting ↓


Sorting by Shape


Sorting is an important skill in math and everyday life. It involves arranging objects or information in a specific order. In Grade 1, children begin learning sorting in a simple way by classifying objects based on their physical characteristics. A common way to sort is by size. Sorting by size helps young learners identify, differentiate, and organize objects, which builds a strong foundation for more complex mathematical and logical reasoning.

Understanding shapes

Before we start sorting by shape, let's understand what shapes are. Shapes are geometric shapes, and they can be found everywhere around us. The common shapes that kids encounter are as follows:

  • Circle
  • Social class
  • Rectangle
  • Triangle
  • Oval
Circle: A round shape that has no corners or edges.

Square: A shape with four equal sides and four right angles.

Rectangle: A shape with four sides and four right angles, with opposite sides being equal.

Triangle: A shape with three sides and three corners.

Oval: A shape that resembles a flattened circle.

Why sorting by size is important

Sorting by size is important because it:

  • Enhances observation skills by noticing similarities and differences.
  • This builds children's vocabulary as they learn the names of the shapes.
  • Develops early math skills that can be applied to future math concepts.
  • This promotes logical thinking as children determine the criteria for sorting.

How to sort by size

Sorting by size can be a fun activity. Here's a simple way to sort items by size:

  1. Gather various objects of different shapes. These can be toys, blocks or even cutouts.
  2. Identify the shape of each object.
  3. Group similarly shaped objects together.

Visual example

Let's see how sorting by size works with some examples:

circleSocial class

In the SVG above, you see a Circle and a Square. These two shapes are different and can be placed in different groups.

Now, let's say we have several shapes:

We are here:

  • Two Circles
  • Two Squares
  • Two Triangles

Let us divide them into three groups based on their size:

CirclesSectionsTriangle

Now, the shapes are sorted into groups: Circles, Squares, and Triangles.

Practice sorting by size

Practice makes perfect! Here are some activities you can try:

  1. Activity 1: Go on a shape hunt. Find objects around your home or classroom and group them based on their shape.
  2. Activity 2: Use shape cutouts and let students divide these cutouts into different groups.
  3. Activity 3: Interactive games in the digital world. Many educational apps engage children in sorting games.
  4. Activity 4: Shape matching game, where children match one shape with another shape of the same kind.

These activities will not only improve shape recognition skills but also make the learning process enjoyable.

Conclusion

Sorting by shape may seem like a simple task, but it is a cornerstone of early mathematical learning. By understanding and mastering this skill, children develop their cognitive and organizational abilities, which sets the stage for more advanced learning in the future. Encourage children to observe, engage with, and have fun with shapes every day.


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Sorting by Shape

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