Mechanical properties of solid bodies Lesson plan

Long-term plan unit:

Liquid and solid bodies

School:

Date:

Teacher name:                                      

Grade: 10

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Theme of the lesson

Mechanical properties of solid bodies

Learning objectives that are achieved at this lesson (Subject Program reference)

·         To define Young’s modulus under elastic deformation

Lesson objectives

In this lesson, the students will:

1.      define stress, strain, and the Young modulus

2.      Analyze stress v. strain graphs

3.      Categorize materials based on their stress v. strain graphs

Success criteria

•      Know the correct definitions for the three terms (stress, strain, and Young's modulus);

•      explain the relationship between the values (stress, strain, and Young's modulus);

•      solve problems using the Young's modulus formula;

•      Analyze the strain of wires of different cross-sections and lengths.

Language objectives

Subject-specific vocabulary & terminology:

Young modulus, stiff, stiffness, strong, weak, tough, brittle, ductile, ultimate tensile stress

Useful sets of phrases for dialogue and writing: Toughness is simply the opposite of brittleness; calculating strength just involves a measure of the force needed to break the material and the area over which the force is acting.

Cross-curricular links

A connection can be made with biology, where force and extension are used to analyse the strength of animal tissues (bones and muscles).

ICT skills

Students will use powerpoint to create and give presentations.

Previous learning

Students have learned all of these topics in previous years, although this lesson goes into much greater detail about analysis of stress v. strain graphs.

Course of the lesson

Planned stages of the lesson

Planned activities at the lesson

Resources

Beginning

5 minutes

Starter: Students will answer the question from the starter in their copybooks.

Review of homework from last lesson

Organizational moment to acquaint students with the

·         Theme of the lesson

·         The objectives of the lesson

·         The criteria of success for the lesson

·         The plan of events for the lesson

Slide 1

Slides 2-5

Middle

10 min

23 min

Presentation on stress, strain, and the Young modulus

Student group work on experimentally estimating the Young modulus of human muscle tissue.

Slides 6-11

Word document “Demonstration”

Slides 12-15

End

2 minutes

Reflection: Students will answer the following questions with a thumbs up/middle/down

1)      I know the definitions for stress, strain, and Young’s modulus

2)      I can explain the relationship between stress, strain, and Young’s modulus.

Slide 16

Differentiation – how do you plan to give more support? How do you plan to challenge the more able learners?

Assessment – how are you planning to check students’ learning?

Health and safety regulations

By having students read theoretical material, present this material to others (speaking), listen to other students’ presentations, and perform a hands on demonstration, the content will be delivered in a way that suits several different learning styles.

Students will be assessed on the quality and results of their experimental work, as well as on the problems they solve at the end of class.

Students will be cautioned to be careful when handling heavy weights not to drop them on their own or anther students feet or an object that may break.  Students will also be instructed in  the correct way of lifting a weight to protect their back muscles.

Reflection

Were the lesson objectives/learning objectives realistic? Did all learners achieve the LO?

If not, why?

Did my planned differentiation work well?

Did I stick to timings?

What changes did I make from my plan and why?

Use the space below to reflect on your lesson. Answer the most relevant questions from the box on the left about your lesson.

Summary evaluation

What two things went really well (consider both teaching and learning)?

1:

2:

What two things would have improved the lesson (consider both teaching and learning)?

1:  .

2:

What have I learned from this lesson about the class or achievements/difficulties of individuals that will inform my next lesson?