Grade 3
  1. Number Sense and Numeration  1.1. Understanding Numbers  1.1.1. Reading and Writing Numbers up to 10,000  1.1.2. Place Value up to Thousands  1.1.3. Comparing and Ordering Numbers  1.1.4. Rounding Numbers to the Nearest Ten and Hundred  1.1.5. Skip Counting by 2s, 5s, 10s, and 100s up to 1,000  1.2. Operations with Whole Numbers  1.2.1. Addition and Subtraction up to 1,000  1.2.2. Multiplication Facts (up to 10 x 10)  1.2.3. Division Facts (up to 100)  1.2.4. Multiplication as Repeated Addition  1.2.5. Division as Equal Sharing  1.2.6. Word Problems with Addition, Subtraction, Multiplication, and Division  1.3. Estimation  1.3.1. Estimating Sums and Differences  1.3.2. Estimating Products and Quotients  1.4. Understanding Even and Odd Numbers
  2. Fractions and Decimals  2.1. Understanding Fractions  2.1.1. Identifying and Representing Fractions  2.1.2. Fractions of a Whole and Part of a Set  2.1.3. Comparing and Ordering Fractions with Like Denominators  2.1.4. Equivalent Fractions  2.1.5. Simple Fraction Word Problems  2.2. Introduction to Decimals  2.2.1. Tenths and Hundredths as Decimals  2.2.2. Relationship between Fractions and Decimals
  3. Measurement  3.1. Length  3.1.1. Measuring in Centimeters and Meters  3.1.2. Comparing and Ordering Lengths  3.1.3. Estimating Lengths  3.1.4. Converting Between Centimeters and Meters  3.2. Mass  3.2.1. Measuring in Grams and Kilograms  3.2.2. Estimating and Comparing Mass  3.3. Capacity  3.3.1. Measuring in Milliliters and Liters  3.3.2. Estimating and Comparing Capacity  3.4. Time  3.4.1. Telling Time to the Nearest Minute  3.4.2. Calculating Elapsed Time  3.4.3. Using a Calendar  3.4.4. Understanding A.M. and P.M.  3.5. Area and Perimeter  3.5.1. Calculating Perimeter of Simple Shapes  3.5.2. Estimating and Measuring Area of Shapes  3.5.3. Finding Area by Counting Squares
  4. Geometry  4.1. Properties of Shapes  4.1.1. Identifying 2D Shapes (Triangles, Quadrilaterals, Circles, etc.)  4.1.2. Identifying 3D Shapes (Cubes, Spheres, Cylinders, etc.)  4.1.3. Describing Attributes of 2D and 3D Shapes  4.1.4. Recognizing Parallel and Perpendicular Lines  4.2. Symmetry and Transformations  4.2.1. Recognizing Lines of Symmetry  4.2.2. Identifying Flips, Slides, and Turns  4.3. Angles  4.3.1. Understanding Right Angles  4.3.2. Comparing Angles (Acute, Right, Obtuse)
  5. Data Management and Probability  5.1. Data Collection and Organization  5.1.1. Collecting Data using Surveys and Experiments  5.1.2. Organizing Data using Tally Charts and Tables  5.2.1. Creating and Interpreting Pictographs  5.2.2. Creating and Interpreting Bar Graphs  5.2.3. Reading Simple Line Graphs  5.3. Probability  5.3.1. Understanding Basic Probability Terms (Certain, Possible, Impossible)  5.3.2. Predicting Outcomes  5.3.3. Simple Probability Experiments
  6. Patterns and Algebra  6.1. Patterns  6.1.1. Identifying and Extending Numeric Patterns  6.1.2. Identifying and Extending Shape Patterns  6.1.3. Creating Patterns Using Rules  6.2. Introduction to Algebra  6.2.1. Understanding Variables as Unknowns  6.2.2. Solving Simple Addition and Subtraction Equations  6.2.3. Using Patterns to Solve Problems
  7. Problem-Solving Skills  7.1. Strategies for Problem-Solving  7.1.1. Using Pictures or Diagrams  7.1.2. Identifying Patterns in Problems  7.1.3. Making Organized Lists  7.1.4. Guessing and Checking  7.1.5. Using Logical Reasoning  7.1.6. Breaking Down Problems into Steps

Grade 3 → Measurement → Capacity ↓


Measuring in Milliliters and Liters


Capacity is a way of measuring how much space a liquid takes up. In grade 3, we learn how to measure capacity using milliliters and liters. Understanding these measurements helps us in many daily life activities, such as cooking, science experiments, and even just pouring a drink!

What are milliliters and liters?

Milliliters (ml) and liters (l) are units of measurement that help us determine the volume of liquids. Liters are a larger unit of capacity, while milliliters are a smaller unit.

Understanding milliliters

A milliliter is a very small unit of measurement. In fact, 1,000 milliliters are equal to 1 liter! Milliliters are often used to measure small amounts of liquid.

1 litre = 1000 millilitres

Imagine an eyedropper, used in science class or medicine. One squeeze can hold about 1 milliliter. When you think of milliliters, think of small quantities.

1 mlEyedropper

Understanding liters

A liter is a large unit. You can use liters to measure the volume of water in a bottle or jug. One way to visualize liters is to think of the large soda bottle you get at the store.

1 litreSoda Bottle

Another way to understand liters and milliliters is this:

  • an eyedropper - about 1ml
  • One tablespoon - about 15 ml
  • 1 cup water - about 250 ml
  • A large water bottle - about 1 litre
  • Milk jug - about 2 liters

These examples will help you understand what each measurement will look like.

Real-life examples

Cooking

When cooking, you can use milliliters and liters to measure ingredients. For example, if a recipe calls for 250 ml of water, you would measure that amount using a measuring cup for accuracy.

250 ml = 0.25 litre

Science laboratory

Carefully measuring liquids is very important in a science lab. A small test tube can hold about 10 milliliters of liquid, while a large beaker can hold up to 1 liter of liquid.

How to measure capacity correctly

To accurately measure liquid capacity, use measuring instruments designed for milliliters and liters. The most common instruments include:

  • Eyedropper for a very small amount (about 1 ml)
  • Spoons to measure a few milliliters (e.g., 5 ml, 15 ml)
  • Measuring cups for larger quantities (in milliliters or liters)
  • Jugs and beakers for possible volumes in liters

A simple way to measure it is:

  1. Choose the right device according to your needs.
  2. Carefully pour the liquid until it reaches the desired level.
  3. Check at eye level to ensure accuracy, especially for exact amounts.

Conversions and relations

It is important to understand how to convert between milliliters and liters. As we know, 1 liter = 1000 milliliters. This means that if you have 500 milliliters, it is half a liter.

Some quick conversions:

  • 500 ml = 0.5 liters
  • 250 ml = 0.25 liters
  • 750 ml = 0.75 liters
  • 100 ml = 0.1 liters

Practice these conversions for ease of understanding. When you add 2000 ml of water, it is equal to 2 liters.

2 litres= 2000 ml

Fun activities

Try these activities to get familiar with milliliters and liters:

Water sports

Use different containers and guess how much water they contain. Then, use a measuring cup to see how accurate your guess is!

Recipe creation

Create a simple drink recipe, noting the quantity of each ingredient in milliliters and liters. Mix fruit juice, water and some sugar!

Convert and compare

Take everyday items like water bottles, milk jugs or juice cartons. Convert the labels on them to liters and vice versa to better understand their capacity.

Practice problems

Try solving these problems to improve your skills:

  1. A glass contains 200 ml of juice. How many liters is this?
  2. You have a 1.5 liter bottle of water. Convert this to milliliters.
  3. If one mug contains 300 ml of tea, how much tea will five mugs contain in a litre?
  4. A tank can hold 7 liters of water. How many milliliters is this?
  5. You are asked to measure 1250 ml of milk. How many liters is this?

Recap and significance

Understanding how to measure in milliliters and liters is an important skill that will be useful throughout your life. Capacity measurements help with cooking, scientific understanding, and even simple everyday tasks like filling a glass with water.

With practice, you will learn to visualize these measurements and convert between milliliters and liters easily. Remember that 1 liter equals 1000 milliliters, and use the techniques and examples outlined to master capacity measurements.

© 2023 Learning Capacity Measurement


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Measuring in Milliliters and Liters

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