Math PBL case|Loving branded jewellery boxes

     

1. The exquisite appearance of branded jewellery boxes brings a sense of ceremony.

     

As the saying goes, "the gift is light, the sentiment is more important, and the sentiment is reflected in the heart, heart to select gifts, heart to choose branded jewellery boxes, exquisite branded jewellery boxes appearance brings a full sense of ceremony, so that the value of the gift The value of the gift is maximized. And life often encounter branded jewellery boxes size is not suitable, the bag is easy to break and other problems. The students and teachers of the elementary school affiliated to Beijing Business University started from the lesson of "The Learning of Packaging" in the 5th grade mathematics subject, from the starting point of "choosing a gift for someone you like", and then designing and making branded jewellery boxes for the gift you want to send. In the process of learning the project, you will experience the design thinking of branded jewellery boxes, and learn mathematical knowledge while exploring and innovating.

      

    

Project Information Card

Student age Primary 5

Core driving questions How to choose a gift for your favorite person and design a gift box?

Knowledge Objectives Explore and master the volume and surface area calculation methods of rectangles, squares, and cylinders, 3D printing technology, etc.

Ability to communicate effectively, self-directed learning, mathematical and logical skills, analytical and critical thinking

Project outcome: A lovingly wrapped gift box

   

 

    

2.branded jewellery boxes Entry activity: Who is the gift for?

     

2.1.branded jewellery boxes design class discussion activity

      

Show some small videos of opening branded jewellery boxes in festivals. Ask the students to think: "What branded jewellery boxes gift will we prepare for who, why, and for what?" It can be a birthday gift or a holiday gift.

    

    

2.2. Sorting branded jewellery boxes

     

Ask the students to record the gifts they want to give and sort them according to the characteristics of the shape of the gift branded jewellery boxes.

   

     

2.3. Grouping by the chosen branded jewellery boxes

    

Each student was put into different groups according to the type of gift branded jewellery boxes they chose, there were cylinder group, trigonal group, quadrangular cone group, irregular shape group, etc.

    

     

2.4.Branded jewellery boxes design team building

     

The students formed their own branded jewellery boxes design teams, divided into six groups, and gave their own branded jewellery boxes group names, determined the project direction (handicraft/technology) and group division of labor, which were: TR Creation Group, Phantom Group 2, Star Ying Group 3, Creation Dream Group 4, 3D printing production Group 5, and Rui Zhi six groups.

     

     

3.Decomposition driven question 1: How to design branded jewellery boxes for the gifts we choose?

    

3.1.branded jewellery boxes Knowledge preparation

     

      The formula for calculating the area of common three-dimensional figures and the method of drawing a plan.

    

     

3.2. problem solving1-designing a plan of branded jewellery boxes

     

Sub-problem: How should the floor plans of different three-dimensional figures be drawn branded jewellery boxes and how should the area be calculated?

     

    

3.3. Ask questions (three groups): How to find the surface area of branded jewellery boxes of a cylinder?

     

Solution: children have previously learned the method of the surface area of the long square, with the help of solving the surface area of the long square to find the cylinder. Find a lot of information on the Internet to study .

    

     

3.4. Ask the question (Group 2):What if the plan of branded jewellery boxes is not drawn accurately?

    

Solutions.

(1), ask the teacher for advice

(2), combined with the knowledge we have learned to draw with parallel lines

(3), find information on the Internet.

-Ask a question (Group 2): How can branded jewellery boxes be too big to draw on A4 paper?

Solution.

Take the length, width and height of the branded jewellery boxes, reduce them proportionally, and then draw them on a large cardboard.

    

    

3.5. Problem solving 2 - prepare materials for making branded jewellery boxes

     

Sub-problem: What kind of material, material, color and style should we use to design this branded jewellery boxes?

Sub-problem: How to calculate the materials needed for branded jewellery boxes?

Sub-question: how to buy these branded jewellery boxes consumables?

    

     

3.6. Ask branded jewellery boxes questions (six groups).

     

The ribbon tying method is single: when decorating branded jewellery boxes the ribbon tying method is only one way to tie the bow.

Solution.

Through the network to collect branded jewellery boxes ribbon decoration is very diverse, such as: bow, rose bow and other tying methods. Use mathematical knowledge - prism length and to calculate the length of the ribbon.

    

    

3.7. - Ask questions (three groups): branded jewellery boxes paper is soft and not sturdy.

     

Solution.

advantages of colored paper: light, thin, absorbent, hard, soft, easy to fold.

cardboard advantages: thick, hard, poor flexibility, suitable for sturdy things, etc..

Combination of the two materials, with sturdy cardboard affixed to the inside

    

    

3.7. Decomposition drive problem 2: How to make branded jewellery boxes?

     

Problem solving, making products - making branded jewellery boxes by hand

Sub-problem: How to solve the problem of sturdy branded jewellery boxes?

Sub-problem: How to solve the problem of branded jewellery boxes aesthetic

Sub-problem: How to solve the problem of making irregular shapes of branded jewellery boxes?

    

    

3.8. Ask a question (six groups): The branded jewellery boxes made according to the design drawings are too small.

      

Solution.

Discover the measurement error, recalculate, cut and make them.

3.9. Problem (five groups): The traditional branded jewellery boxes are not easy to save and cannot meet the demand of beautiful design.

    

Solution.

Use 3D printing technology, first design the idea of branded jewellery boxes production, then use a modeling software to draw the model, and then design the size, after buying the required decorative electronic components, and then use the printer to slice and print, print and load the electronic components with software programming, and finally test and improve.

    

    

4.Decomposition drive question 3:How to show and promote our branded jewellery boxes?

      

1. Each group will organize the process of making branded jewellery boxes, the problems encountered, the solutions and the project results, and make a PPT.

2. Each group will present and exchange their branded jewellery boxes.

3. The students on the stage will ask questions to the group's presentation of branded jewellery boxes, and the group members will reply.

4. When listening to the report, each student has an evaluation sheet in their hands.

5. Teacher summary evaluation.

      

     

6. Review of branded jewellery boxes production case

        

In this activity of making branded jewellery boxes, students made rectangular, cylindrical, trigonal, quadrilateral and even high-tech branded jewellery boxes with LED light bulbs from real situations and using their knowledge of mathematics and art.

6.1. Use branded jewellery boxes design thinking. Choose gifts from user needs, then design branded jewellery boxes according to the characteristics of the gift.

6.2. Deep integration of academic subjects and making branded jewellery boxes. Combine the problem of branded jewellery boxes in life with the calculation of volume and surface area of rectangular, square and cylinder as well as the calculation of cone volume in the curriculum to develop students' observation skills and awareness of using mathematical knowledge to solve problems.

6.3. develop spatial concepts. branded jewellery boxes drawings are designed and made by hand to develop the spatial concept of three-dimensional shapes and to stimulate students to think in an orderly manner, classify rationally, and simplify.

6.4. Reinforce problem solving. In the process of designing and making branded jewellery boxes, students encountered many practical problems and were encouraged to explore and find solutions on their own. In the process of solving these problems, they strengthened their knowledge and developed their thinking.

    

     

7. Welcome the teachers to share their own branded jewellery boxes cases and experiences:

     

Life is the best learning, and mathematical expression is everywhere! We believe that the children of BGSU affiliated elementary school have further improved their core literacy such as mathematical logic thinking ability, creativity and innovation, communication ability and teamwork ability in this PBL project learning! Welcome teachers to share their own branded jewellery boxes cases and experiences!