Урок Cambridge Primary Science Stahe 4 Food Chains

Cambridge Primary Science

Lesson plan.

Stage 4.

Topic: Food Chains (45 minutes ).

Framework Code-4Bp.2- Identify food chains and describe simple feeding relationships.

Learning Objectives

By the end of the lesson learners will be able to :

- define key terms: producer, consumer, herbivore, carnivore, omnivore.

- construct simple food chains showing how energy is transferred from one organism to another.

-explain what happenes if one part of a food chain is removed or changed.

Resources

Pictures or flashcards of animals and plants, chart paper or whiteboard, string or arrow cutouts for building chains, videos and interactive media ( Cambridge.go, Cambridge.one, BBC ).

Key Vocabulary

Producer

Consumer

Herbivore

Carnivore

Omnivore

Predator

Prey

Energy Transfer

 

Lesson Structure

1. Introduction ( 10 min. )

Begin with a question: “What do animals eat?”, “Where does their food come from?”

Recall prior learning that plants make their own food using sunlight.

Show images of different animals and discuss what they eat.

Introduce the concept of food chains using a simpe example:

Grass→Grasshopper→Frog→Snake→Eagle.

Explain how energy flows through the food chain starting from the sun.

2. Main Activity ( 25-30 min. )

 

Activity 1: Build a Food Chain ( Group Work )

Give groups sets of organism cards.

Ask them to arrange in a logical order to show feeding relationships.

Use string of arrows to link them and label each part - producer/ consumer.

Activity 2: What happenes if…?

Discuss what could happen if one organism disappeares, encourage critical thinking about balance in ecosystems.

Plenary ( 10 min. )

Review the key terms again through a short quiz or “Who am I?” game.

Ask: “What is the source of all energy in a food chain- the Sun.

Invite students to share one example of a food chain they created.

Assessment

Observe participation and understanding during group activities.

Check worksheets for correct sequencing and labeling of food chains.

Oral questioning to assess comprehension of terminoogy.

Differentiation

Support

Provide pre-made cards and simple chains.

Extension

Ask advanced learners to add another trophic level or include decomposers.

Challenge Question: “Can some animals appear in more than one food chain?”

Homework/ Follow-up

Students draw and label a food chain from a habitat of their choice ( forest, pond, ocean ).

Research one animal’s diet and its role in the ecosystem.