#### Lesson Plan of Speed

#### General Science Grade IV

#### Students’ Learning Outcomes

*·*

*Define speed and give its relation with distance.*

*Information for Teachers*

*·*

*Distance covered in unit time is called speed.*

*·*

*A fast speed objects covers a specified distance in less than a slow speed object.*

* Material / Resources*

*Two tennis balls, chalk, textbook*

*Worm up activity *

*Ask the students:*

*·*

*When you were walking in the street, a cyclist passed by you. Who is faster, you or the cyclist?*

*·*

*Then ask have you ever seen the speedometer of a motor bike or a car?*

*·*

*Inform them that the speedometers are used to measure the speed.*

*·*

*Inform the students: when you come to school, you cover some distance between your home and school. Then ask:*

*·*

*How do you cover this distance?*

*(Students’ response: on foot, on bicycle, car or bus). How long does it take you to cover this distance?*

*·*

*How can you cover this distance faster? By travailing on bicycle, car or on foot?*

*(Inform them: a fast speed object covers the specified distance in less time)*

*Development*

#### Activity 1

*·*

*Ask one student to cover this distance by walking and the other by running.*

*·*

*Ask: who reached first? And why?*

*·*

*Draw their attention to the fact that the greater the speed of object the shorter is the time taken to cover a certain distance.*

*Activity 2*

*·*

*Mark two lines on the floor, one is the starting line and the other is the finishing line.*

*·*

*Place two tennis balls A and B side by side on the starting line.*

*·*

*Then ask a student to push both the balls towards the finishing line with the different forces.*

*·*

*After this demonstration, ask the students: which ball reached the finishing line earlier?*

*·*

*Which ball moved faster?*

*·*

*Draw out the conclusion that an object with greater speed covers a certain distance in shorter time.*

*·*

*Repeat the activity with different pairs of students.*

*Activity 3*

*·*

*Take your students to a playground.*

*·*

*Ask two students to start running in the same direction at the first clap and stop running at the second of clap.*

*·*

*Then ask: which student covered a longer distance in the same time?*

*·*

*Which student ran faster?*

*(Students’ response: A high speed object covers a longer distance in a certain time.*

#### Sum up / conclusion

*Ask the students: What we have learn t from today’s lesson? And write on the board the following conclusions from students’ answers.*

*·*

*The distance is measured by measuring length between the specific points.*

*·*

*A faster object covers a specified distance in less time than a slow speed object.*

*·*

*A faster object covers a longer distance in less time as compared to a slow one.*

*Assessment*

*·*

*Teacher will show some pictures (or cut outs) as given below to the students and ask the following questions:*

*·*

*Look at the picture below, which item is the fastest and which is slowest?*

*·*

*In the block given below, put the number of suitable pictures.*