Hello, Grade 4 Students!

Welcome to our lesson on "English Across the Curriculum." Have you ever wondered if English is only for memorizing vocabulary words in English class? The truth is, we can use English to explore and have fun with other subjects like Math, Science, Social Studies, and even Art!

Today, we're going to see how the vocabulary and sentences we learn can pop up in other subjects. If you're ready, let’s go explore the wide world through English!

1. English and Math

In Math, we deal with numbers and shapes. Let's see how we name them in English.

Numbers 21-100

By Grade 3, you might have mastered 1-20. Now, in Grade 4, it’s time to learn bigger numbers. The simple rule is:

- For multiples of ten, use the suffix -ty, such as Twenty (20), Thirty (30), Forty (40), Fifty (50).
- For numbers with a remainder, use a hyphen (-) to connect them, such as Twenty-one (21), Thirty-five (35).

Shapes

- Circle: Like a donut.
- Square: A shape with 4 equal sides.
- Triangle: A shape with 3 corners, like a sandwich.
- Rectangle: Like a school notebook.

Pro-tip: For the word "Triangle," try to remember that "Tri" means 3. So, a Triangle is a shape with 3 corners!

2. English and Science

This subject is so much fun because we get to learn about living things and the nature around us!

Parts of a Tree

- Root: Found underground, absorbing water.
- Stem: Helps the tree stand tall.
- Leaf: The green part that makes food for the tree.
- Flower: The colorful, beautiful part.

Animal Groups

You’ll encounter simple vocabulary to classify animals, such as:
- Insects: Animals with 6 legs, like Ants or Bees.
- Mammals: Animals that nurse their young, like Dogs, Cats, or Whales.
- Habitat: Where an animal lives, such as a Forest, Sea, or Desert.

Did you know?: A whale is not a fish! It is a mammal that lives in the water.

3. English and Social Studies/Art

Let's look at locations and colors.

Directions and Maps

- North
- South
- East
- West

Colors and Mixing

In Art, we use English to name basic colors like Red, Blue, and Yellow (the primary colors). When we mix them, we get new colors, for example, Red + Yellow = Orange.

4. English and Health/Physical Education

Health is a topic that is very close to home!

Healthy Food

- Fruit and Vegetables: Packed with vitamins.
- Milk: Helps keep your bones strong.
- Exercise: Physical activity that keeps your body Healthy.

Pro-tip: If you want to say you are in good health, say, "I am healthy!"

Common Mistakes

- 14 vs. 40: Many people confuse Fourteen (14) and Forty (40). Remember: -teen is for teenagers (the "teens"), while -ty is for multiples of ten.
- Spelling "Fruit": Don't forget the letter i. Always spell it F-R-U-I-T.

Key Takeaway

Learning English in Grade 4 is all about "putting vocabulary into practice" across different subjects—whether you're counting in Math, naming plant parts in Science, or identifying directions in Social Studies. Connecting these concepts helps you remember words better and makes learning much more enjoyable!

If it feels difficult at first, don't worry... Take it one word at a time. Look around you and try to guess what things are called in English when you think about your Science or Math lessons. Practice often, and you'll be an expert in no time. Keep it up!