· Theme: Investigating Force And Energy
· Learning Area: Movement
· Learning Objective: Understanding speed
Pupils should be able to:
· state that an object which moves faster travels a longer distance in a given time;
· state that an object which moves faster takes a shorter time to travel a given distance;
· an object with a greater speed moves faster than an object with a slower speed.
· an object that moves faster covers a longer distance than a slow object, in the same period of time.
· an object that moves faster takes a shorter time to travel a fixed distance.
· Observing, classifying, making inferences, interpreting data, making conclusions, comparing and contrasting.
Vocabulary/ New Words:
· stationary objects, distance, moves, shorter time, time taken, further
· Having an interest in and curiosity about the environment.
· Being diligent and persevering.
· Realising that science is a means to understand nature.
· Thinking rationally
· Analysing the things around us
Point(s) to Note:Explain and give examples of comparisons of longer versus shorter time, longer versus shorter distance, and faster versus slower objects.
Show video on a 100m race. Tell pupils how to determine the winner. Explain to pupils that normally the winner is the person who completes the distance of 100m in the shortest time. What is meant when we say the winner takes the least time to complete the race? Encourage pupils to relate speed with time.
Play the content component. Give examples of two objects that travel for the same duration of time. Conclude that the faster object will travel a longer distance.
Play the content component. Give examples of two objects that travel the same distance. Conclude that the faster object will take a shorter time to complete the fixed distance or the faster object will travel a longer distance in a given time.
Illustrate using an aeroplane and a bus as the objects. Prompt pupils to think why aeroplanes travel further in an hour compared to the bus.
Play the content component. Give the examples of a bicycle race. For a distance of 20KM, the cyclist who completes the 20KM race in the shortest time is the fastest cyclist. Conclude that a faster object travels a longer distance in a given time as well as takes a shorter time to travel a given distance.
Play the content component. Ask pupils what is the relation between an object’s movement with the distance and time. Show the example of a slow object. Conclude that a slower object takes a longer time to complete a given distance as well as travels a shorter distance in a fixed time. Give a real life example of a rabbit and tortoise. The rabbit runs faster compared to the tortoise.
Play the activity component. Prompt pupils to click a number to get a question.
Fill in the answer of the question by clicking on a pool of letters of the alphabet to form the answer. Pupils can discuss with their friends for this activity.
There are five questions in this component covering the learning outcomes. Questions 1 to 3 are objective questions. Q4 is a drag and drop activity. Pupils drag and drop the correct answers for the questions. Q5 consists of true or false questions. Pupils need to identify whether the statements are true or false.
Use evaluation sheets to assess the pupils’ understanding of this lesson.
Play the extension component. Study the shapes of fish. They have fins and a tail that help them to swim in the water. Conclude that the streamline shape makes the fish swim faster in the water. Ask pupils to explore what other possible shapes a fish can have? Does it help to make them move faster in the water? Present their findings in the class.
Conclude the lesson by playing this component to further reinforce understanding of the lesson. Help pupils to understand that objects with greater speed travel faster than a slower object. The faster object travels a longer distance in a fixed time. The faster object uses a shorter time to travel a fixed distance.